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3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:Rx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ux.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 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D3 Map of World Population

-
-
-
- Sources:
- Map made with Natural Earth
- World population data as of 2017: https://databank.worldbank.org -
+ + + - - - +

D3 Map of World Population

+
+
+
+ Sources:
+ Map made with Natural Earth
+ World population data as of 2025: https://databank.worldbank.org +
+ + + + diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js index c6f506569..5aa8856f5 100644 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js +++ b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js @@ -14,18 +14,19 @@ const format = d3.format(","); // ISO 3166-1 Alpha 3 country code identifier const idCode = "ADM0_A3"; -const svg = d3.select("#map") - .append("svg") - .attr("width", svgWidth) - .attr("height", svgHeight); +const svg = d3 + .select("#map") + .append("svg") + .attr("width", svgWidth) + .attr("height", svgHeight); -const projection = d3.geoMercator() - .scale(scale) - .translate([svgWidth / 2, svgHeight / 2]) - .center([0, 20]); +const projection = d3 + .geoMercator() + .scale(scale) + .translate([svgWidth / 2, svgHeight / 2]) + .center([0, 20]); -const path = d3.geoPath() - .projection(projection); +const path = d3.geoPath().projection(projection); // Create a group to hold the countries const g = svg.append("g"); @@ -34,147 +35,156 @@ const g = svg.append("g"); const getJSONData = d3.json(mapPath); const getCSVData = d3.csv(popPath); -Promise.all([getJSONData, getCSVData]).then(function(values) { - const json = values[0]; - const population = values[1]; - - // Find the max and min population values in the data to better understand it - const popArray = population.map(d => +d.Population); - // const low = d3.min(popArray); - // const high = d3.max(popArray); - const extent = d3.extent(popArray); // [12876, 1386395000] - console.log("Min population is: " + extent[0]); // 12,876 -> Nauru - console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China - - // Create a scale to map population value to a color - const color = d3.scaleThreshold() - .domain([ - 500000, - 5000000, - 10000000, - 25000000, - 50000000, - 100000000, - 1000000000]) - .range(d3.schemeYlOrRd[8]); - - // Create an object that maps country ID to population - let popMap = {}; - population.forEach(d => { - popMap[d.ID] = +d.Population - }); - - const countries = topojson.feature(json, json.objects.countries).features; - - // Tooltip setup - const tooltip = d3.select("#tooltip") - .style("display", "none") - .classed("tooltip", true); - - // Draw the map and add tooltip functionality - g.selectAll(".countries") - .data(countries) - .enter().append("path") - .attr("class", "countries") - .attr("d", path) - // .style("stroke", "white") // Moved to CSS - .style("stroke-width", 0.5) - .style("opacity", 0.75) - .style("fill", d => { - const pop = popMap[d.properties[idCode]]; - if (pop) { - return color(pop); - } else { - return "gray" - } - }) - .on("mouseover", function(d) { - tooltip.transition() - .style("display", "inline") - .style("opacity", .9); - - // Change the style of the selected country - d3.select(this) - .style("opacity", 1) - .style("stroke-width", 2); - }) - .on("mousemove", function(d) { - const pop2 = popMap[d.properties[idCode]] ? format(popMap[d.properties[idCode]]) : "NA"; - - // Create HTML string with country name and population info - let dataPoint = "
" + - "Country: " + - d.properties.NAME + "
" + - "Population: " + - pop2 + - "
"; - - tooltip.html(dataPoint) - .style("left", (d3.event.pageX + 32) + "px") - .style("top", (d3.event.pageY + 32) + "px"); - }) - .on("mouseout", function(d) { - // Fade tooltip when mouse leaves - tooltip.transition() - .style("display", "none") - .style("opacity", 0); - - // Revert country to original style - d3.select(this) - .style("opacity", 0.75) - .style("stroke-width", 0.5); - }); - - // Add map pan and zoom behavior - const pad = 140; - - function zoomed() { - g.attr("transform", d3.event.transform); - } - - svg.call(d3.zoom() - .scaleExtent([1, 8]) - .translateExtent([[0, -pad], [svgWidth, svgHeight + pad]]) - .on("zoom", zoomed) - ); - - // Add legend to show population color thresholds - const w = svgWidth / 2 - 4; - const x_0 = svgWidth / 2; - const y_0 = svgHeight - 120; - const length = color.range().length; - - // Create a group to hold the legend - const legend = svg.append("g") - .attr("transform", "translate(" + x_0 + ", " + y_0 +")"); - - // Create a linear scale to help position legend colorblocks - const x = d3.scaleLinear() - .domain([1, length - 1]) - .rangeRound([w / length, w * (length - 1) / length]); - - // Create rectangles for each color bar - legend.selectAll("rect") - .data(color.range()) - .join("rect") - .attr("x", (d, i) => x(i)) - .attr("width", w / length) - .attr("height", 10) - .attr("fill", d => d); - - // Add legend title - legend.append("text") - .attr("y", - 10) - .attr("fill", "black") - .attr("text-anchor", "start") - .attr("font-weight", "bold") - .text("Population Thresholds"); - - // Add tick marks with population values under color bars - legend.call(d3.axisBottom(x) - .tickSize(15) - .ticks(length - 1) - .tickFormat(i => format(color.domain()[i - 1]))) - .select(".domain") - .remove(); +Promise.all([getJSONData, getCSVData]).then(function (values) { + const json = values[0]; + const population = values[1]; + + // Find the max and min population values in the data to better understand it + const popArray = population.map((d) => +d.Population); + // const low = d3.min(popArray); + // const high = d3.max(popArray); + const extent = d3.extent(popArray); // [12876, 1386395000] + console.log("Min population is: " + extent[0]); // 12,876 -> Nauru + console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China + + // Create a scale to map population value to a color + const color = d3 + .scaleThreshold() + .domain([ + 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, + ]) + .range(d3.schemeYlOrRd[8]); + + // Create an object that maps country ID to population + let popMap = {}; + population.forEach((d) => { + popMap[d.ID] = +d.Population; + }); + + const countries = topojson.feature(json, json.objects.countries).features; + + // Tooltip setup + const tooltip = d3 + .select("#tooltip") + .style("display", "none") + .classed("tooltip", true); + + // Draw the map and add tooltip functionality + g.selectAll(".countries") + .data(countries) + .enter() + .append("path") + .attr("class", "countries") + .attr("d", path) + // .style("stroke", "white") // Moved to CSS + .style("stroke-width", 0.5) + .style("opacity", 0.75) + .style("fill", (d) => { + const pop = popMap[d.properties[idCode]]; + + if (pop) { + return color(pop); + } else { + return "gray"; + } + }) + .on("mouseover", function (d, countries) { + tooltip.transition().style("display", "inline").style("opacity", 0.9); + + // Change the style of the selected country + d3.select(this).style("opacity", 1).style("stroke-width", 2); + }) + .on("mousemove", function (d, countries) { + const pop2 = popMap[countries.properties[idCode]] + ? format(popMap[countries.properties[idCode]]) + : "NA"; + + // Create HTML string with country name and population info + let dataPoint = + "
" + + "Country: " + + countries.properties.NAME + + "
" + + "Population: " + + pop2 + + "
"; + + tooltip + .html(dataPoint) + .style("left", d.layerX + 18 + "px") + .style("top", d.layerY + 18 + "px"); + }) + .on("mouseout", function (d, countries) { + // Fade tooltip when mouse leaves + tooltip.transition().style("display", "none").style("opacity", 0); + + // Revert country to original style + d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); + }); + + // Add map pan and zoom behavior + const pad = 140; + + function zoomed() { + g.attr("transform", d3.event.transform); + } + + svg.call( + d3 + .zoom() + .scaleExtent([1, 8]) + .translateExtent([ + [0, -pad], + [svgWidth, svgHeight + pad], + ]) + .on("zoom", zoomed), + ); + + // Add legend to show population color thresholds + const w = svgWidth / 2 - 4; + const x_0 = svgWidth / 2; + const y_0 = svgHeight - 120; + const length = color.range().length; + + // Create a group to hold the legend + const legend = svg + .append("g") + .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); + + // Create a linear scale to help position legend colorblocks + const x = d3 + .scaleLinear() + .domain([1, length - 1]) + .rangeRound([w / length, (w * (length - 1)) / length]); + + // Create rectangles for each color bar + legend + .selectAll("rect") + .data(color.range()) + .join("rect") + .attr("x", (d, i) => x(i)) + .attr("width", w / length) + .attr("height", 10) + .attr("fill", (d) => d); + + // Add legend title + legend + .append("text") + .attr("y", -10) + .attr("fill", "black") + .attr("text-anchor", "start") + .attr("font-weight", "bold") + .text("Population Thresholds"); + + // Add tick marks with population values under color bars + legend + .call( + d3 + .axisBottom(x) + .tickSize(15) + .ticks(length - 1) + .tickFormat((i) => format(color.domain()[i - 1])), + ) + .select(".domain") + .remove(); }); diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv index f54da0821..5faf43c60 100644 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv +++ b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv @@ -1,217 +1,264 @@ -ID,Name,Population -AFG,Afghanistan,35530081 -ALB,Albania,2873457 -DZA,Algeria,41318142 -ASM,American Samoa,55641 -AND,Andorra,76965 -AGO,Angola,29784193 -ATG,Antigua and Barbuda,102012 -ARG,Argentina,44271041 -ARM,Armenia,2930450 -ABW,Aruba,105264 -AUS,Australia,24601860 -AUT,Austria,8797566 -AZE,Azerbaijan,9854033 -BHS,"Bahamas, The",395361 -BHR,Bahrain,1492584 -BGD,Bangladesh,164669751 -BRB,Barbados,285719 -BLR,Belarus,9498264 -BEL,Belgium,11382393 -BLZ,Belize,374681 -BEN,Benin,11175692 -BMU,Bermuda,65441 -BTN,Bhutan,807610 -BOL,Bolivia,11051600 -BIH,Bosnia and Herzegovina,3507017 -BWA,Botswana,2291661 -BRA,Brazil,209288278 -VGB,British Virgin Islands,31196 -BRN,Brunei Darussalam,428697 -BGR,Bulgaria,7075947 -BFA,Burkina Faso,19193382 -BDI,Burundi,10864245 -CPV,Cabo Verde,546388 -KHM,Cambodia,16005373 -CMR,Cameroon,24053727 -CAN,Canada,36708083 -CYM,Cayman Islands,61559 -CAF,Central African Republic,4659080 -TCD,Chad,14899994 -CHI,Channel Islands,165314 -CHL,Chile,18054726 -CHN,China,1386395000 -COL,Colombia,49065615 -COM,Comoros,813912 -COD,"Congo, Dem. Rep.",81339988 -COG,"Congo, Rep.",5260750 -CRI,Costa Rica,4905769 -CIV,Cote d'Ivoire,24294750 -HRV,Croatia,4124531 -CUB,Cuba,11484636 -CUW,Curacao,160175 -CYP,Cyprus,1179551 -CZE,Czech Republic,10594438 -DNK,Denmark,5764980 -DJI,Djibouti,956985 -DMA,Dominica,73925 -DOM,Dominican Republic,10766998 -ECU,Ecuador,16624858 -EGY,"Egypt, Arab Rep.",97553151 -SLV,El Salvador,6377853 -GNQ,Equatorial Guinea,1267689 -ERI,Eritrea,.. -EST,Estonia,1317384 -SWZ,Eswatini,1367254 -ETH,Ethiopia,104957438 -FRO,Faroe Islands,49290 -FJI,Fiji,905502 -FIN,Finland,5508214 -FRA,France,67105513 -PYF,French Polynesia,283007 -GAB,Gabon,2025137 -GMB,"Gambia, The",2100568 -GEO,Georgia,3728004 -DEU,Germany,82685827 -GHA,Ghana,28833629 -GIB,Gibraltar,34571 -GRC,Greece,10753531 -GRL,Greenland,56171 -GRD,Grenada,107825 -GUM,Guam,164229 -GTM,Guatemala,16913503 -GIN,Guinea,12717176 -GNB,Guinea-Bissau,1861283 -GUY,Guyana,777859 -HTI,Haiti,10981229 -HND,Honduras,9265067 -HKG,"Hong Kong SAR, China",7391700 -HUN,Hungary,9787966 -ISL,Iceland,343400 -IND,India,1339180127 -IDN,Indonesia,263991379 -IRN,"Iran, Islamic Rep.",81162788 -IRQ,Iraq,38274618 -IRL,Ireland,4811321 -IMN,Isle of Man,84287 -ISR,Israel,8713300 -ITA,Italy,60536709 -JAM,Jamaica,2890299 -JPN,Japan,126785797 -JOR,Jordan,9702353 -KAZ,Kazakhstan,18037776 -KEN,Kenya,49699862 -KIR,Kiribati,116398 -PRK,"Korea, Dem. People’s Rep.",25490965 -KOR,"Korea, Rep.",51466201 -XKX,Kosovo,1830700 -KWT,Kuwait,4136528 -KGZ,Kyrgyz Republic,6198200 -LAO,Lao PDR,6858160 -LVA,Latvia,1942248 -LBN,Lebanon,6082357 -LSO,Lesotho,2233339 -LBR,Liberia,4731906 -LBY,Libya,6374616 -LIE,Liechtenstein,37922 -LTU,Lithuania,2828403 -LUX,Luxembourg,596336 -MAC,"Macao SAR, China",622567 -MDG,Madagascar,25570895 -MWI,Malawi,18622104 -MYS,Malaysia,31624264 -MDV,Maldives,436330 -MLI,Mali,18541980 -MLT,Malta,467999 -MHL,Marshall Islands,53127 -MRT,Mauritania,4420184 -MUS,Mauritius,1264613 -MEX,Mexico,129163276 -FSM,"Micronesia, Fed. Sts.",105544 -MDA,Moldova,3549196 -MCO,Monaco,38695 -MNG,Mongolia,3075647 -MNE,Montenegro,622373 -MAR,Morocco,35739580 -MOZ,Mozambique,29668834 -MMR,Myanmar,53370609 -NAM,Namibia,2533794 -NRU,Nauru,12876 -NPL,Nepal,29304998 -NLD,Netherlands,17131296 -NCL,New Caledonia,280460 -NZL,New Zealand,4793900 -NIC,Nicaragua,6217581 -NER,Niger,21477348 -NGA,Nigeria,190886311 -MKD,North Macedonia,2083160 -MNP,Northern Mariana Islands,55144 -NOR,Norway,5276968 -OMN,Oman,4636262 -PAK,Pakistan,197015955 -PLW,Palau,21729 -PAN,Panama,4098587 -PNG,Papua New Guinea,8251162 -PRY,Paraguay,6811297 -PER,Peru,32165485 -PHL,Philippines,104918090 -POL,Poland,37974826 -PRT,Portugal,10300300 -PRI,Puerto Rico,3325001 -QAT,Qatar,2639211 -ROU,Romania,19583986 -RUS,Russian Federation,144496740 -RWA,Rwanda,12208407 -WSM,Samoa,196440 -SMR,San Marino,33400 -STP,Sao Tome and Principe,204327 -SAU,Saudi Arabia,32938213 -SEN,Senegal,15850567 -SRB,Serbia,7020858 -SYC,Seychelles,95843 -SLE,Sierra Leone,7557212 -SGP,Singapore,5612253 -SXM,Sint Maarten (Dutch part),41109 -SVK,Slovak Republic,5439232 -SVN,Slovenia,2066388 -SLB,Solomon Islands,611343 -SOM,Somalia,14742523 -ZAF,South Africa,56717156 -SDS,South Sudan,12575714 -ESP,Spain,46593171 -LKA,Sri Lanka,21444000 -KNA,St. Kitts and Nevis,55345 -LCA,St. Lucia,178844 -MAF,St. Martin (French part),32125 -VCT,St. Vincent and the Grenadines,109897 -SDN,Sudan,40533330 -SUR,Suriname,563402 -SWE,Sweden,10057698 -CHE,Switzerland,8450851 -SYR,Syrian Arab Republic,18269868 -TJK,Tajikistan,8921343 -TZA,Tanzania,57310019 -THA,Thailand,69037513 -TLS,Timor-Leste,1296311 -TGO,Togo,7797694 -TON,Tonga,108020 -TTO,Trinidad and Tobago,1369125 -TUN,Tunisia,11532127 -TUR,Turkey,80745020 -TKM,Turkmenistan,5758075 -TCA,Turks and Caicos Islands,35446 -UGA,Uganda,42862958 -UKR,Ukraine,44831135 -ARE,United Arab Emirates,9400145 -GBR,United Kingdom,66023290 -USA,United States,325147121 -URY,Uruguay,3456750 -UZB,Uzbekistan,32387200 -VUT,Vanuatu,276244 -VEN,"Venezuela, RB",31977065 -VNM,Vietnam,95540800 -VIR,Virgin Islands (U.S.),107268 -PSE,West Bank and Gaza,4684777 -YEM,"Yemen, Rep.",28250420 -ZMB,Zambia,17094130 -ZWE,Zimbabwe,16529904 +ID,Name,Population +AFG,Afghanistan,43844111 +AFE,Africa Eastern and Southern,788844784 +AFW,Africa Western and Central,533939915 +ALB,Albania,2355297 +DZA,Algeria,47435312 +ASM,American Samoa,46029 +AND,Andorra,82904 +AGO,Angola,39040039 +ATG,Antigua and Barbuda,94209 +ARB,Arab World,502080039 +ARG,Argentina,45851378 +ARM,Armenia,3013103 +ABW,Aruba,108031 +AUS,Australia,27446304 +AUT,Austria,9167205 +AZE,Azerbaijan,10264010 +BHS,"Bahamas, The",403033 +BHR,Bahrain,1622245 +BGD,Bangladesh,175686899 +BRB,Barbados,282623 +BLR,Belarus,9074551 +BEL,Belgium,11875529 +BLZ,Belize,422924 +BEN,Benin,14814460 +BMU,Bermuda,64555 +BTN,Bhutan,796682 +BOL,Bolivia,12581843 +BIH,Bosnia and Herzegovina,3140095 +BWA,Botswana,2562122 +BRA,Brazil,212812405 +VGB,British Virgin Islands,39732 +BRN,Brunei Darussalam,466330 +BGR,Bulgaria,6398520 +BFA,Burkina Faso,24074580 +BDI,Burundi,14390003 +CPV,Cabo Verde,527326 +KHM,Cambodia,17847982 +CMR,Cameroon,29879337 +CAN,Canada,41634760 +CSS,Caribbean small states,4560192 +CYM,Cayman Islands,75844 +CAF,Central African Republic,5513282 +CEB,Central Europe and the Baltics,99124041 +TCD,Chad,21003705 +CHI,Channel Islands,168466 +CHL,Chile,19859921 +CHN,China,1405769984 +COL,Colombia,53425635 +COM,Comoros,882847 +COD,"Congo, Dem. Rep.",112832473 +COG,"Congo, Rep.",6484437 +CRI,Costa Rica,5152950 +CIV,Cote d'Ivoire,32711547 +HRV,Croatia,3840326 +CUB,Cuba,10937203 +CUW,Curacao,155975 +CYP,Cyprus,1370754 +CZE,Czechia,10761091 +DNK,Denmark,5996088 +DJI,Djibouti,1184076 +DMA,Dominica,65871 +DOM,Dominican Republic,11520487 +EAR,Early-demographic dividend,3591522600 +EAS,East Asia & Pacific,2389633963 +EAP,East Asia & Pacific (excluding high income),2143091136 +TEA,East Asia & Pacific (IDA & IBRD countries),2116549788 +ECU,Ecuador,18289896 +EGY,"Egypt, Arab Rep.",118365995 +SLV,El Salvador,6365503 +GNQ,Equatorial Guinea,1938431 +ERI,Eritrea,3607003 +EST,Estonia,1353044 +SWZ,Eswatini,1256174 +ETH,Ethiopia,135472051 +EMU,Euro area,350268718 +ECS,Europe & Central Asia,928789508 +ECA,Europe & Central Asia (excluding high income),252804197 +TEC,Europe & Central Asia (IDA & IBRD countries),460868941 +EUU,European Union,448607680 +FRO,Faroe Islands,55275 +FJI,Fiji,933154 +FIN,Finland,5619551 +FRA,France,68644416 +PYF,French Polynesia,282465 +GAB,Gabon,2593130 +GMB,"Gambia, The",2822093 +GEO,Georgia,3698736 +DEU,Germany,82820928 +GHA,Ghana,35064272 +GIB,Gibraltar,40126 +GRC,Greece,10363537 +GRL,Greenland,.. +GRD,Grenada,117303 +GUM,Guam,168999 +GTM,Guatemala,18687881 +GIN,Guinea,15099727 +GNB,Guinea-Bissau,2249515 +GUY,Guyana,835986 +HTI,Haiti,11906095 +HND,Honduras,11005850 +HKG,"Hong Kong SAR, China",7522034 +HUN,Hungary,9501052 +ISL,Iceland,390810 +IND,India,1463865525 +IDN,Indonesia,285721236 +IRN,"Iran, Islamic Rep.",92417681 +IRQ,Iraq,47020774 +IRL,Ireland,5446237 +IMN,Isle of Man,84118 +ISR,Israel,10110474 +ITA,Italy,58728496 +JAM,Jamaica,2837077 +JPN,Japan,123206280 +JOR,Jordan,11520684 +KAZ,Kazakhstan,20843754 +KEN,Kenya,57532493 +KIR,Kiribati,136488 +PRK,"Korea, Dem. People's Rep.",26571036 +KOR,"Korea, Rep.",51655548 +XKX,Kosovo,1584670 +KWT,Kuwait,4978982 +KGZ,Kyrgyz Republic,7330717 +LAO,Lao PDR,7873046 +LTE,Late-demographic dividend,2328127247 +LCN,Latin America & Caribbean,666601081 +LAC,Latin America & Caribbean (excluding high income),598291419 +TLA,Latin America & the Caribbean (IDA & IBRD countries),651470998 +LVA,Latvia,1844970 +LDC,Least developed countries: UN classification,1215297488 +LBN,Lebanon,5849421 +LSO,Lesotho,2363325 +LBR,Liberia,5731206 +LBY,Libya,7458555 +LIE,Liechtenstein,40712 +LTU,Lithuania,2845440 +LMY,Low & middle income,6627772089 +LIC,Low income,641739726 +LMC,Lower middle income,3160177604 +LUX,Luxembourg,684101 +MAC,"Macao SAR, China",677703 +MDG,Madagascar,32740678 +MWI,Malawi,22216120 +MYS,Malaysia,35977838 +MDV,Maldives,529676 +MLI,Mali,25198821 +MLT,Malta,573715 +MHL,Marshall Islands,36282 +MRT,Mauritania,5315065 +MUS,Mauritius,1243370 +MEX,Mexico,131946900 +FSM,"Micronesia, Fed. Sts.",113683 +MEA,"Middle East, North Africa, Afghanistan & Pakistan",826730776 +MNA,"Middle East, North Africa, Afghanistan & Pakistan (excluding high income)",753871682 +TMN,"Middle East, North Africa, Afghanistan & Pakistan (IDA & IBRD)",748489811 +MIC,Middle income,5986032363 +MDA,Moldova,2365111 +MCO,Monaco,38341 +MNG,Mongolia,3566719 +MNE,Montenegro,613970 +MAR,Morocco,38430770 +MOZ,Mozambique,35631653 +MMR,Myanmar,54850648 +NAM,Namibia,3092816 +NRU,Nauru,12025 +NPL,Nepal,29618118 +NLD,Netherlands,18095592 +NCL,New Caledonia,295333 +NZL,New Zealand,5322803 +NIC,Nicaragua,7007502 +NER,Niger,27917831 +NGA,Nigeria,237527782 +NAC,North America,383507187 +MKD,North Macedonia,1814961 +MNP,Northern Mariana Islands,43541 +NOR,Norway,5609051 +INX,Not classified,.. +OED,OECD members,1399427110 +OMN,Oman,5494691 +OSS,Other small states,13005114 +PSS,Pacific island small states,2755649 +PAK,Pakistan,255219554 +PLW,Palau,17663 +PAN,Panama,4571189 +PNG,Papua New Guinea,10762817 +PRY,Paraguay,7013078 +PER,Peru,34576665 +PHL,Philippines,116786962 +POL,Poland,36122448 +PRT,Portugal,10674409 +PST,Post-demographic dividend,1130253876 +PRE,Pre-demographic dividend,1134262205 +PRI,Puerto Rico (US),3191033 +QAT,Qatar,2918488 +ROU,Romania,18948026 +RUS,Russian Federation,142755424 +RWA,Rwanda,14569341 +WSM,Samoa,219306 +SMR,San Marino,33968 +STP,Sao Tome and Principe,240254 +SAU,Saudi Arabia,35916992 +SEN,Senegal,18931966 +SRB,Serbia,6536525 +SYC,Seychelles,123601 +SLE,Sierra Leone,8819794 +SGP,Singapore,6072360 +SXM,Sint Maarten (Dutch part),43923 +SVK,Slovak Republic,5384248 +SVN,Slovenia,2124876 +SST,Small states,20320955 +SLB,Solomon Islands,838645 +SOM,"Somalia, Fed. Rep.",19654739 +ZAF,South Africa,64747319 +SAS,South Asia,1692524608 +TSA,South Asia (IDA & IBRD),1692524608 +SDS,South Sudan,12188788 +ESP,Spain,48811344 +LKA,Sri Lanka,22027708 +KNA,St. Kitts and Nevis,46922 +LCA,St. Lucia,180149 +MAF,St. Martin (French part),24941 +VCT,St. Vincent and the Grenadines,99924 +SSF,Sub-Saharan Africa,1322784699 +SSA,Sub-Saharan Africa (excluding high income),1187189047 +TSS,Sub-Saharan Africa (IDA & IBRD countries),1322784699 +SDN,Sudan,51662147 +SUR,Suriname,639850 +SWE,Sweden,10611737 +CHE,Switzerland,9045135 +SYR,Syrian Arab Republic,25620427 +TJK,Tajikistan,10786734 +TZA,Tanzania,70545865 +THA,Thailand,71619863 +TLS,Timor-Leste,1418517 +TGO,Togo,9721608 +TON,Tonga,103742 +TTO,Trinidad and Tobago,1371398 +TUN,Tunisia,12348573 +TUR,Turkiye,85729312 +TKM,Turkmenistan,7618847 +TCA,Turks and Caicos Islands,46855 +TUV,Tuvalu,9492 +UGA,Uganda,51384894 +UKR,Ukraine,38980376 +ARE,United Arab Emirates,11243507 +GBR,United Kingdom,69607016 +USA,United States,341807872 +UMC,Upper middle income,2825854759 +URY,Uruguay,3384688 +UZB,Uzbekistan,37053428 +VUT,Vanuatu,335169 +VEN,"Venezuela, RB",28516896 +VNM,Viet Nam,101598527 +VIR,Virgin Islands (U.S.),103513 +PSE,West Bank and Gaza,5381871 +WLD,World,8210571822 +YEM,"Yemen, Rep.",41773878 +ZMB,Zambia,21913874 +ZWE,Zimbabwe,16950795 +,, +,, +,, +,Data from database: Population estimates and projections, +,Last Updated: 12/18/2025, From 1eeb7ce7d82630b5451fd5e9db8a381f60bd1513 Mon Sep 17 00:00:00 2001 From: Daniel Freire <20461343+danielfreire-dev@users.noreply.github.com> Date: Mon, 26 Jan 2026 20:29:49 +0000 Subject: [PATCH 02/11] changed .js file name, css file name, uses cdn version of d3(cloudflare and requests an online version of the csv file --- .../d3.v7.min.js | 2 - .../index.html | 9 +- .../{index.js => script.js} | 4 +- .../{index.css => styles.css} | 0 .../worldPopulation.csv | 264 ------------------ 5 files changed, 5 insertions(+), 274 deletions(-) delete mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3.v7.min.js rename front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/{index.js => script.js} (97%) rename front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/{index.css => styles.css} (100%) delete mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3.v7.min.js b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3.v7.min.js deleted file mode 100644 index 33bb88026..000000000 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3.v7.min.js +++ /dev/null @@ -1,2 +0,0 @@ -// https://d3js.org v7.9.0 Copyright 2010-2023 Mike Bostock -!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports):"function"==typeof define&&define.amd?define(["exports"],n):n((t="undefined"!=typeof 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3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:Rx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ux.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 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5aa8856f5..ef32b93ad 100644 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js +++ b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js @@ -3,7 +3,9 @@ const mapPath = "./naturalEarth50TopoJSON.json"; // 2017 world population data. Source: https://databank.worldbank.org -const popPath = "./worldPopulation.csv"; +const popPath = await d3.csv( + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map//worldPopulation.csv", +); // Setup const svgWidth = 1000; diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.css b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/styles.css similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.css rename to front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/styles.css diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv deleted file mode 100644 index 5faf43c60..000000000 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv +++ /dev/null @@ -1,264 +0,0 @@ -ID,Name,Population -AFG,Afghanistan,43844111 -AFE,Africa Eastern and Southern,788844784 -AFW,Africa Western and Central,533939915 -ALB,Albania,2355297 -DZA,Algeria,47435312 -ASM,American Samoa,46029 -AND,Andorra,82904 -AGO,Angola,39040039 -ATG,Antigua and Barbuda,94209 -ARB,Arab World,502080039 -ARG,Argentina,45851378 -ARM,Armenia,3013103 -ABW,Aruba,108031 -AUS,Australia,27446304 -AUT,Austria,9167205 -AZE,Azerbaijan,10264010 -BHS,"Bahamas, The",403033 -BHR,Bahrain,1622245 -BGD,Bangladesh,175686899 -BRB,Barbados,282623 -BLR,Belarus,9074551 -BEL,Belgium,11875529 -BLZ,Belize,422924 -BEN,Benin,14814460 -BMU,Bermuda,64555 -BTN,Bhutan,796682 -BOL,Bolivia,12581843 -BIH,Bosnia and Herzegovina,3140095 -BWA,Botswana,2562122 -BRA,Brazil,212812405 -VGB,British Virgin Islands,39732 -BRN,Brunei Darussalam,466330 -BGR,Bulgaria,6398520 -BFA,Burkina Faso,24074580 -BDI,Burundi,14390003 -CPV,Cabo Verde,527326 -KHM,Cambodia,17847982 -CMR,Cameroon,29879337 -CAN,Canada,41634760 -CSS,Caribbean small states,4560192 -CYM,Cayman Islands,75844 -CAF,Central African Republic,5513282 -CEB,Central Europe and the Baltics,99124041 -TCD,Chad,21003705 -CHI,Channel Islands,168466 -CHL,Chile,19859921 -CHN,China,1405769984 -COL,Colombia,53425635 -COM,Comoros,882847 -COD,"Congo, Dem. 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Sts.",113683 -MEA,"Middle East, North Africa, Afghanistan & Pakistan",826730776 -MNA,"Middle East, North Africa, Afghanistan & Pakistan (excluding high income)",753871682 -TMN,"Middle East, North Africa, Afghanistan & Pakistan (IDA & IBRD)",748489811 -MIC,Middle income,5986032363 -MDA,Moldova,2365111 -MCO,Monaco,38341 -MNG,Mongolia,3566719 -MNE,Montenegro,613970 -MAR,Morocco,38430770 -MOZ,Mozambique,35631653 -MMR,Myanmar,54850648 -NAM,Namibia,3092816 -NRU,Nauru,12025 -NPL,Nepal,29618118 -NLD,Netherlands,18095592 -NCL,New Caledonia,295333 -NZL,New Zealand,5322803 -NIC,Nicaragua,7007502 -NER,Niger,27917831 -NGA,Nigeria,237527782 -NAC,North America,383507187 -MKD,North Macedonia,1814961 -MNP,Northern Mariana Islands,43541 -NOR,Norway,5609051 -INX,Not classified,.. -OED,OECD members,1399427110 -OMN,Oman,5494691 -OSS,Other small states,13005114 -PSS,Pacific island small states,2755649 -PAK,Pakistan,255219554 -PLW,Palau,17663 -PAN,Panama,4571189 -PNG,Papua New Guinea,10762817 -PRY,Paraguay,7013078 -PER,Peru,34576665 -PHL,Philippines,116786962 -POL,Poland,36122448 -PRT,Portugal,10674409 -PST,Post-demographic dividend,1130253876 -PRE,Pre-demographic dividend,1134262205 -PRI,Puerto Rico (US),3191033 -QAT,Qatar,2918488 -ROU,Romania,18948026 -RUS,Russian Federation,142755424 -RWA,Rwanda,14569341 -WSM,Samoa,219306 -SMR,San Marino,33968 -STP,Sao Tome and Principe,240254 -SAU,Saudi Arabia,35916992 -SEN,Senegal,18931966 -SRB,Serbia,6536525 -SYC,Seychelles,123601 -SLE,Sierra Leone,8819794 -SGP,Singapore,6072360 -SXM,Sint Maarten (Dutch part),43923 -SVK,Slovak Republic,5384248 -SVN,Slovenia,2124876 -SST,Small states,20320955 -SLB,Solomon Islands,838645 -SOM,"Somalia, Fed. 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933daf6a490bb314db2379d3af347b902c95724f Mon Sep 17 00:00:00 2001 From: Daniel Freire <20461343+danielfreire-dev@users.noreply.github.com> Date: Sat, 7 Feb 2026 16:27:18 +0000 Subject: [PATCH 04/11] updated .css file name. fetching data from cdn now. moved course 'front-end-libs' -> 'full-stack-certs' --- .gitignore | 4 +- .../Lessons/0010_index.html | 0 .../Lessons/0020_index.html | 0 .../Lessons/0030_index.html | 0 .../Lessons/0040_index.html | 0 .../Lessons/0050_index.html | 0 .../Lessons/0060_index.html | 0 .../Lessons/0070_index.js | 0 .../Lessons/0080_index.js | 0 .../Lessons/0090_index.js | 0 .../Lessons/0100_index.js | 0 .../Lessons/0110_index.css | 0 .../Lessons/0120_index.html | 0 .../Lessons/0130_index.js | 0 .../Lessons/0140_index.js | 0 .../Lessons/0150_index.js | 0 .../Lessons/0160_index.js | 0 .../Lessons/0170_index.js | 0 .../Lessons/0180_index.js | 0 .../Lessons/0190_index.js | 0 .../Lessons/0200_index.js | 0 .../Lessons/0210_index.js | 0 .../Lessons/0220_index.js | 0 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b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1250_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1250_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1250_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1260_index.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1260_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1260_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1260_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1270_index.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1270_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1270_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1270_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1280_index.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1280_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1280_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1280_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1290_index.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1290_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1290_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1290_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1300_index.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1300_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1300_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/1300_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.css b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.css similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.css rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.css diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.html b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.html similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.html rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.html diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/Lessons/FINAL_index.js diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.html b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/index.html similarity index 93% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.html rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/index.html index 422cb94dc..670992368 100644 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.html +++ b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/index.html @@ -10,7 +10,7 @@ World Population - + diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/naturalEarth50TopoJSON.json b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/naturalEarth50TopoJSON.json similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/naturalEarth50TopoJSON.json rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/naturalEarth50TopoJSON.json diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/script.js similarity index 97% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/script.js index ef32b93ad..9ca96e674 100644 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js +++ b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/script.js @@ -3,9 +3,8 @@ const mapPath = "./naturalEarth50TopoJSON.json"; // 2017 world population data. Source: https://databank.worldbank.org -const popPath = await d3.csv( - "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map//worldPopulation.csv", -); +const popPath = + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; // Setup const svgWidth = 1000; diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/styles.css b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/styles.css similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/styles.css rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/styles.css diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/topojsonv1min.js b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/topojsonv1min.js similarity index 100% rename from front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/topojsonv1min.js rename to fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/topojsonv1min.js diff --git a/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv new file mode 100644 index 000000000..0bb7a60f1 --- /dev/null +++ b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv @@ -0,0 +1,259 @@ +ID,Name,Population +AFG,Afghanistan,43844111 +AFE,Africa Eastern and Southern,788844784 +AFW,Africa Western and Central,533939915 +ALB,Albania,2355297 +DZA,Algeria,47435312 +ASM,American Samoa,46029 +AND,Andorra,82904 +AGO,Angola,39040039 +ATG,Antigua and Barbuda,94209 +ARB,Arab World,502080039 +ARG,Argentina,45851378 +ARM,Armenia,3013103 +ABW,Aruba,108031 +AUS,Australia,27446304 +AUT,Austria,9167205 +AZE,Azerbaijan,10264010 +BHS,"Bahamas, The",403033 +BHR,Bahrain,1622245 +BGD,Bangladesh,175686899 +BRB,Barbados,282623 +BLR,Belarus,9074551 +BEL,Belgium,11875529 +BLZ,Belize,422924 +BEN,Benin,14814460 +BMU,Bermuda,64555 +BTN,Bhutan,796682 +BOL,Bolivia,12581843 +BIH,Bosnia and Herzegovina,3140095 +BWA,Botswana,2562122 +BRA,Brazil,212812405 +VGB,British Virgin Islands,39732 +BRN,Brunei Darussalam,466330 +BGR,Bulgaria,6398520 +BFA,Burkina Faso,24074580 +BDI,Burundi,14390003 +CPV,Cabo Verde,527326 +KHM,Cambodia,17847982 +CMR,Cameroon,29879337 +CAN,Canada,41634760 +CSS,Caribbean small states,4560192 +CYM,Cayman Islands,75844 +CAF,Central African Republic,5513282 +CEB,Central Europe and the Baltics,99124041 +TCD,Chad,21003705 +CHI,Channel Islands,168466 +CHL,Chile,19859921 +CHN,China,1405769984 +COL,Colombia,53425635 +COM,Comoros,882847 +COD,"Congo, Dem. Rep.",112832473 +COG,"Congo, Rep.",6484437 +CRI,Costa Rica,5152950 +CIV,Cote d'Ivoire,32711547 +HRV,Croatia,3840326 +CUB,Cuba,10937203 +CUW,Curacao,155975 +CYP,Cyprus,1370754 +CZE,Czechia,10761091 +DNK,Denmark,5996088 +DJI,Djibouti,1184076 +DMA,Dominica,65871 +DOM,Dominican Republic,11520487 +EAR,Early-demographic dividend,3591522600 +EAS,East Asia & Pacific,2389633963 +EAP,East Asia & Pacific (excluding high income),2143091136 +TEA,East Asia & Pacific (IDA & IBRD countries),2116549788 +ECU,Ecuador,18289896 +EGY,"Egypt, Arab Rep.",118365995 +SLV,El Salvador,6365503 +GNQ,Equatorial Guinea,1938431 +ERI,Eritrea,3607003 +EST,Estonia,1353044 +SWZ,Eswatini,1256174 +ETH,Ethiopia,135472051 +EMU,Euro area,350268718 +ECS,Europe & Central Asia,928789508 +ECA,Europe & Central Asia (excluding high income),252804197 +TEC,Europe & Central Asia (IDA & IBRD countries),460868941 +EUU,European Union,448607680 +FRO,Faroe Islands,55275 +FJI,Fiji,933154 +FIN,Finland,5619551 +FRA,France,68644416 +PYF,French Polynesia,282465 +GAB,Gabon,2593130 +GMB,"Gambia, The",2822093 +GEO,Georgia,3698736 +DEU,Germany,82820928 +GHA,Ghana,35064272 +GIB,Gibraltar,40126 +GRC,Greece,10363537 +GRL,Greenland,.. +GRD,Grenada,117303 +GUM,Guam,168999 +GTM,Guatemala,18687881 +GIN,Guinea,15099727 +GNB,Guinea-Bissau,2249515 +GUY,Guyana,835986 +HTI,Haiti,11906095 +HND,Honduras,11005850 +HKG,"Hong Kong SAR, China",7522034 +HUN,Hungary,9501052 +ISL,Iceland,390810 +IND,India,1463865525 +IDN,Indonesia,285721236 +IRN,"Iran, Islamic Rep.",92417681 +IRQ,Iraq,47020774 +IRL,Ireland,5446237 +IMN,Isle of Man,84118 +ISR,Israel,10110474 +ITA,Italy,58728496 +JAM,Jamaica,2837077 +JPN,Japan,123206280 +JOR,Jordan,11520684 +KAZ,Kazakhstan,20843754 +KEN,Kenya,57532493 +KIR,Kiribati,136488 +PRK,"Korea, Dem. People's Rep.",26571036 +KOR,"Korea, Rep.",51655548 +XKX,Kosovo,1584670 +KWT,Kuwait,4978982 +KGZ,Kyrgyz Republic,7330717 +LAO,Lao PDR,7873046 +LTE,Late-demographic dividend,2328127247 +LCN,Latin America & Caribbean,666601081 +LAC,Latin America & Caribbean (excluding high income),598291419 +TLA,Latin America & the Caribbean (IDA & IBRD countries),651470998 +LVA,Latvia,1844970 +LDC,Least developed countries: UN classification,1215297488 +LBN,Lebanon,5849421 +LSO,Lesotho,2363325 +LBR,Liberia,5731206 +LBY,Libya,7458555 +LIE,Liechtenstein,40712 +LTU,Lithuania,2845440 +LMY,Low & middle income,6627772089 +LIC,Low income,641739726 +LMC,Lower middle income,3160177604 +LUX,Luxembourg,684101 +MAC,"Macao SAR, China",677703 +MDG,Madagascar,32740678 +MWI,Malawi,22216120 +MYS,Malaysia,35977838 +MDV,Maldives,529676 +MLI,Mali,25198821 +MLT,Malta,573715 +MHL,Marshall Islands,36282 +MRT,Mauritania,5315065 +MUS,Mauritius,1243370 +MEX,Mexico,131946900 +FSM,"Micronesia, Fed. Sts.",113683 +MEA,"Middle East, North Africa, Afghanistan & Pakistan",826730776 +MNA,"Middle East, North Africa, Afghanistan & Pakistan (excluding high income)",753871682 +TMN,"Middle East, North Africa, Afghanistan & Pakistan (IDA & IBRD)",748489811 +MIC,Middle income,5986032363 +MDA,Moldova,2365111 +MCO,Monaco,38341 +MNG,Mongolia,3566719 +MNE,Montenegro,613970 +MAR,Morocco,38430770 +MOZ,Mozambique,35631653 +MMR,Myanmar,54850648 +NAM,Namibia,3092816 +NRU,Nauru,12025 +NPL,Nepal,29618118 +NLD,Netherlands,18095592 +NCL,New Caledonia,295333 +NZL,New Zealand,5322803 +NIC,Nicaragua,7007502 +NER,Niger,27917831 +NGA,Nigeria,237527782 +NAC,North America,383507187 +MKD,North Macedonia,1814961 +MNP,Northern Mariana Islands,43541 +NOR,Norway,5609051 +INX,Not classified,.. +OED,OECD members,1399427110 +OMN,Oman,5494691 +OSS,Other small states,13005114 +PSS,Pacific island small states,2755649 +PAK,Pakistan,255219554 +PLW,Palau,17663 +PAN,Panama,4571189 +PNG,Papua New Guinea,10762817 +PRY,Paraguay,7013078 +PER,Peru,34576665 +PHL,Philippines,116786962 +POL,Poland,36122448 +PRT,Portugal,10674409 +PST,Post-demographic dividend,1130253876 +PRE,Pre-demographic dividend,1134262205 +PRI,Puerto Rico (US),3191033 +QAT,Qatar,2918488 +ROU,Romania,18948026 +RUS,Russian Federation,142755424 +RWA,Rwanda,14569341 +WSM,Samoa,219306 +SMR,San Marino,33968 +STP,Sao Tome and Principe,240254 +SAU,Saudi Arabia,35916992 +SEN,Senegal,18931966 +SRB,Serbia,6536525 +SYC,Seychelles,123601 +SLE,Sierra Leone,8819794 +SGP,Singapore,6072360 +SXM,Sint Maarten (Dutch part),43923 +SVK,Slovak Republic,5384248 +SVN,Slovenia,2124876 +SST,Small states,20320955 +SLB,Solomon Islands,838645 +SOM,"Somalia, Fed. Rep.",19654739 +ZAF,South Africa,64747319 +SAS,South Asia,1692524608 +TSA,South Asia (IDA & IBRD),1692524608 +SDS,South Sudan,12188788 +ESP,Spain,48811344 +LKA,Sri Lanka,22027708 +KNA,St. Kitts and Nevis,46922 +LCA,St. Lucia,180149 +MAF,St. Martin (French part),24941 +VCT,St. Vincent and the Grenadines,99924 +SSF,Sub-Saharan Africa,1322784699 +SSA,Sub-Saharan Africa (excluding high income),1187189047 +TSS,Sub-Saharan Africa (IDA & IBRD countries),1322784699 +SDN,Sudan,51662147 +SUR,Suriname,639850 +SWE,Sweden,10611737 +CHE,Switzerland,9045135 +SYR,Syrian Arab Republic,25620427 +TJK,Tajikistan,10786734 +TZA,Tanzania,70545865 +THA,Thailand,71619863 +TLS,Timor-Leste,1418517 +TGO,Togo,9721608 +TON,Tonga,103742 +TTO,Trinidad and Tobago,1371398 +TUN,Tunisia,12348573 +TUR,Turkiye,85729312 +TKM,Turkmenistan,7618847 +TCA,Turks and Caicos Islands,46855 +TUV,Tuvalu,9492 +UGA,Uganda,51384894 +UKR,Ukraine,38980376 +ARE,United Arab Emirates,11243507 +GBR,United Kingdom,69607016 +USA,United States,341807872 +UMC,Upper middle income,2825854759 +URY,Uruguay,3384688 +UZB,Uzbekistan,37053428 +VUT,Vanuatu,335169 +VEN,"Venezuela, RB",28516896 +VNM,Viet Nam,101598527 +VIR,Virgin Islands (U.S.),103513 +PSE,West Bank and Gaza,5381871 +WLD,World,8210571822 +YEM,"Yemen, Rep.",41773878 +ZMB,Zambia,21913874 +ZWE,Zimbabwe,16950795 \ No newline at end of file From 36028f10df0d2926f206a3523a91cc4c914f102c Mon Sep 17 00:00:00 2001 From: Daniel Freire <20461343+danielfreire-dev@users.noreply.github.com> Date: Sat, 7 Feb 2026 16:27:33 +0000 Subject: [PATCH 05/11] updated .css file name. fetching data from cdn now. moved course 'front-end-libs' -> 'full-stack-certs' --- .../world-population.csv | 259 ------------------ 1 file changed, 259 deletions(-) delete mode 100644 fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv diff --git a/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv b/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv deleted file mode 100644 index 0bb7a60f1..000000000 --- a/fullstack-cert/d3-projects/learn-intermediate-d3-by-building-a-map-of-earth/world-population.csv +++ /dev/null @@ -1,259 +0,0 @@ -ID,Name,Population -AFG,Afghanistan,43844111 -AFE,Africa Eastern and Southern,788844784 -AFW,Africa Western and Central,533939915 -ALB,Albania,2355297 -DZA,Algeria,47435312 -ASM,American Samoa,46029 -AND,Andorra,82904 -AGO,Angola,39040039 -ATG,Antigua and Barbuda,94209 -ARB,Arab World,502080039 -ARG,Argentina,45851378 -ARM,Armenia,3013103 -ABW,Aruba,108031 -AUS,Australia,27446304 -AUT,Austria,9167205 -AZE,Azerbaijan,10264010 -BHS,"Bahamas, The",403033 -BHR,Bahrain,1622245 -BGD,Bangladesh,175686899 -BRB,Barbados,282623 -BLR,Belarus,9074551 -BEL,Belgium,11875529 -BLZ,Belize,422924 -BEN,Benin,14814460 -BMU,Bermuda,64555 -BTN,Bhutan,796682 -BOL,Bolivia,12581843 -BIH,Bosnia and Herzegovina,3140095 -BWA,Botswana,2562122 -BRA,Brazil,212812405 -VGB,British Virgin Islands,39732 -BRN,Brunei Darussalam,466330 -BGR,Bulgaria,6398520 -BFA,Burkina Faso,24074580 -BDI,Burundi,14390003 -CPV,Cabo Verde,527326 -KHM,Cambodia,17847982 -CMR,Cameroon,29879337 -CAN,Canada,41634760 -CSS,Caribbean small states,4560192 -CYM,Cayman Islands,75844 -CAF,Central African Republic,5513282 -CEB,Central Europe and the Baltics,99124041 -TCD,Chad,21003705 -CHI,Channel Islands,168466 -CHL,Chile,19859921 -CHN,China,1405769984 -COL,Colombia,53425635 -COM,Comoros,882847 -COD,"Congo, Dem. Rep.",112832473 -COG,"Congo, Rep.",6484437 -CRI,Costa Rica,5152950 -CIV,Cote d'Ivoire,32711547 -HRV,Croatia,3840326 -CUB,Cuba,10937203 -CUW,Curacao,155975 -CYP,Cyprus,1370754 -CZE,Czechia,10761091 -DNK,Denmark,5996088 -DJI,Djibouti,1184076 -DMA,Dominica,65871 -DOM,Dominican Republic,11520487 -EAR,Early-demographic dividend,3591522600 -EAS,East Asia & Pacific,2389633963 -EAP,East Asia & Pacific (excluding high income),2143091136 -TEA,East Asia & Pacific (IDA & IBRD countries),2116549788 -ECU,Ecuador,18289896 -EGY,"Egypt, Arab Rep.",118365995 -SLV,El Salvador,6365503 -GNQ,Equatorial Guinea,1938431 -ERI,Eritrea,3607003 -EST,Estonia,1353044 -SWZ,Eswatini,1256174 -ETH,Ethiopia,135472051 -EMU,Euro area,350268718 -ECS,Europe & Central Asia,928789508 -ECA,Europe & Central Asia (excluding high income),252804197 -TEC,Europe & Central Asia (IDA & IBRD countries),460868941 -EUU,European Union,448607680 -FRO,Faroe Islands,55275 -FJI,Fiji,933154 -FIN,Finland,5619551 -FRA,France,68644416 -PYF,French Polynesia,282465 -GAB,Gabon,2593130 -GMB,"Gambia, The",2822093 -GEO,Georgia,3698736 -DEU,Germany,82820928 -GHA,Ghana,35064272 -GIB,Gibraltar,40126 -GRC,Greece,10363537 -GRL,Greenland,.. -GRD,Grenada,117303 -GUM,Guam,168999 -GTM,Guatemala,18687881 -GIN,Guinea,15099727 -GNB,Guinea-Bissau,2249515 -GUY,Guyana,835986 -HTI,Haiti,11906095 -HND,Honduras,11005850 -HKG,"Hong Kong SAR, China",7522034 -HUN,Hungary,9501052 -ISL,Iceland,390810 -IND,India,1463865525 -IDN,Indonesia,285721236 -IRN,"Iran, Islamic Rep.",92417681 -IRQ,Iraq,47020774 -IRL,Ireland,5446237 -IMN,Isle of Man,84118 -ISR,Israel,10110474 -ITA,Italy,58728496 -JAM,Jamaica,2837077 -JPN,Japan,123206280 -JOR,Jordan,11520684 -KAZ,Kazakhstan,20843754 -KEN,Kenya,57532493 -KIR,Kiribati,136488 -PRK,"Korea, Dem. People's Rep.",26571036 -KOR,"Korea, Rep.",51655548 -XKX,Kosovo,1584670 -KWT,Kuwait,4978982 -KGZ,Kyrgyz Republic,7330717 -LAO,Lao PDR,7873046 -LTE,Late-demographic dividend,2328127247 -LCN,Latin America & Caribbean,666601081 -LAC,Latin America & Caribbean (excluding high income),598291419 -TLA,Latin America & the Caribbean (IDA & IBRD countries),651470998 -LVA,Latvia,1844970 -LDC,Least developed countries: UN classification,1215297488 -LBN,Lebanon,5849421 -LSO,Lesotho,2363325 -LBR,Liberia,5731206 -LBY,Libya,7458555 -LIE,Liechtenstein,40712 -LTU,Lithuania,2845440 -LMY,Low & middle income,6627772089 -LIC,Low income,641739726 -LMC,Lower middle income,3160177604 -LUX,Luxembourg,684101 -MAC,"Macao SAR, China",677703 -MDG,Madagascar,32740678 -MWI,Malawi,22216120 -MYS,Malaysia,35977838 -MDV,Maldives,529676 -MLI,Mali,25198821 -MLT,Malta,573715 -MHL,Marshall Islands,36282 -MRT,Mauritania,5315065 -MUS,Mauritius,1243370 -MEX,Mexico,131946900 -FSM,"Micronesia, Fed. Sts.",113683 -MEA,"Middle East, North Africa, Afghanistan & Pakistan",826730776 -MNA,"Middle East, North Africa, Afghanistan & Pakistan (excluding high income)",753871682 -TMN,"Middle East, North Africa, Afghanistan & Pakistan (IDA & IBRD)",748489811 -MIC,Middle income,5986032363 -MDA,Moldova,2365111 -MCO,Monaco,38341 -MNG,Mongolia,3566719 -MNE,Montenegro,613970 -MAR,Morocco,38430770 -MOZ,Mozambique,35631653 -MMR,Myanmar,54850648 -NAM,Namibia,3092816 -NRU,Nauru,12025 -NPL,Nepal,29618118 -NLD,Netherlands,18095592 -NCL,New Caledonia,295333 -NZL,New Zealand,5322803 -NIC,Nicaragua,7007502 -NER,Niger,27917831 -NGA,Nigeria,237527782 -NAC,North America,383507187 -MKD,North Macedonia,1814961 -MNP,Northern Mariana Islands,43541 -NOR,Norway,5609051 -INX,Not classified,.. -OED,OECD members,1399427110 -OMN,Oman,5494691 -OSS,Other small states,13005114 -PSS,Pacific island small states,2755649 -PAK,Pakistan,255219554 -PLW,Palau,17663 -PAN,Panama,4571189 -PNG,Papua New Guinea,10762817 -PRY,Paraguay,7013078 -PER,Peru,34576665 -PHL,Philippines,116786962 -POL,Poland,36122448 -PRT,Portugal,10674409 -PST,Post-demographic dividend,1130253876 -PRE,Pre-demographic dividend,1134262205 -PRI,Puerto Rico (US),3191033 -QAT,Qatar,2918488 -ROU,Romania,18948026 -RUS,Russian Federation,142755424 -RWA,Rwanda,14569341 -WSM,Samoa,219306 -SMR,San Marino,33968 -STP,Sao Tome and Principe,240254 -SAU,Saudi Arabia,35916992 -SEN,Senegal,18931966 -SRB,Serbia,6536525 -SYC,Seychelles,123601 -SLE,Sierra Leone,8819794 -SGP,Singapore,6072360 -SXM,Sint Maarten (Dutch part),43923 -SVK,Slovak Republic,5384248 -SVN,Slovenia,2124876 -SST,Small states,20320955 -SLB,Solomon Islands,838645 -SOM,"Somalia, Fed. Rep.",19654739 -ZAF,South Africa,64747319 -SAS,South Asia,1692524608 -TSA,South Asia (IDA & IBRD),1692524608 -SDS,South Sudan,12188788 -ESP,Spain,48811344 -LKA,Sri Lanka,22027708 -KNA,St. Kitts and Nevis,46922 -LCA,St. Lucia,180149 -MAF,St. Martin (French part),24941 -VCT,St. Vincent and the Grenadines,99924 -SSF,Sub-Saharan Africa,1322784699 -SSA,Sub-Saharan Africa (excluding high income),1187189047 -TSS,Sub-Saharan Africa (IDA & IBRD countries),1322784699 -SDN,Sudan,51662147 -SUR,Suriname,639850 -SWE,Sweden,10611737 -CHE,Switzerland,9045135 -SYR,Syrian Arab Republic,25620427 -TJK,Tajikistan,10786734 -TZA,Tanzania,70545865 -THA,Thailand,71619863 -TLS,Timor-Leste,1418517 -TGO,Togo,9721608 -TON,Tonga,103742 -TTO,Trinidad and Tobago,1371398 -TUN,Tunisia,12348573 -TUR,Turkiye,85729312 -TKM,Turkmenistan,7618847 -TCA,Turks and Caicos Islands,46855 -TUV,Tuvalu,9492 -UGA,Uganda,51384894 -UKR,Ukraine,38980376 -ARE,United Arab Emirates,11243507 -GBR,United Kingdom,69607016 -USA,United States,341807872 -UMC,Upper middle income,2825854759 -URY,Uruguay,3384688 -UZB,Uzbekistan,37053428 -VUT,Vanuatu,335169 -VEN,"Venezuela, RB",28516896 -VNM,Viet Nam,101598527 -VIR,Virgin Islands (U.S.),103513 -PSE,West Bank and Gaza,5381871 -WLD,World,8210571822 -YEM,"Yemen, Rep.",41773878 -ZMB,Zambia,21913874 -ZWE,Zimbabwe,16950795 \ No newline at end of file From 686160e9a19d077886a5182658d355926f443f3c Mon Sep 17 00:00:00 2001 From: jdwilkin4 Date: Thu, 5 Mar 2026 13:40:59 -0800 Subject: [PATCH 06/11] refactor: move old folder --- .../Lessons/0010_index.html | 0 .../Lessons/0020_index.html | 0 .../Lessons/0030_index.html | 0 .../Lessons/0040_index.html | 0 .../Lessons/0050_index.html | 0 .../Lessons/0060_index.html | 0 .../Lessons/0070_index.js | 0 .../Lessons/0080_index.js | 0 .../Lessons/0090_index.js | 0 .../Lessons/0100_index.js | 0 .../Lessons/0110_index.css | 0 .../Lessons/0120_index.html | 0 .../Lessons/0130_index.js | 0 .../Lessons/0140_index.js | 0 .../Lessons/0150_index.js | 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+ Map made with Natural Earth
+ World population data as of 2025: https://databank.worldbank.org +
+ + + + diff --git a/fullstack-cert/d3-projects/earth-map-project/script.js b/fullstack-cert/d3-projects/earth-map-project/script.js new file mode 100644 index 000000000..1cb5c3d14 --- /dev/null +++ b/fullstack-cert/d3-projects/earth-map-project/script.js @@ -0,0 +1,191 @@ +// Source: Natural Earth 1:50m Cultural Vectors, Admin 0 - Countries +// TODO: replace with freeCodeCamp CDN link +const mapPath = "./naturalEarth50TopoJSON.json"; + +// 2017 world population data. Source: https://databank.worldbank.org +const popPath = + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; + +// Setup +const svgWidth = 1000; +const svgHeight = 700; +const scale = svgWidth / (2 * Math.PI); +const format = d3.format(","); + +// ISO 3166-1 Alpha 3 country code identifier +const idCode = "ADM0_A3"; + +const svg = d3 + .select("#map") + .append("svg") + .attr("width", svgWidth) + .attr("height", svgHeight); + +const projection = d3 + .geoMercator() + .scale(scale) + .translate([svgWidth / 2, svgHeight / 2]) + .center([0, 20]); + +const path = d3.geoPath().projection(projection); + +// Create a group to hold the countries +const g = svg.append("g"); + +// Create requests to retrieve JSON topography data and CSV population data +const getJSONData = d3.json(mapPath); +const getCSVData = d3.csv(popPath); + +Promise.all([getJSONData, getCSVData]).then(function (values) { + const json = values[0]; + const population = values[1]; + + // Find the max and min population values in the data to better understand it + const popArray = population.map((d) => +d.Population); + // const low = d3.min(popArray); + // const high = d3.max(popArray); + const extent = d3.extent(popArray); // [12876, 1386395000] + console.log("Min population is: " + extent[0]); // 12,876 -> Nauru + console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China + + // Create a scale to map population value to a color + const color = d3 + .scaleThreshold() + .domain([ + 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, + ]) + .range(d3.schemeYlOrRd[8]); + + // Create an object that maps country ID to population + let popMap = {}; + population.forEach((d) => { + popMap[d.ID] = +d.Population; + }); + + const countries = topojson.feature(json, json.objects.countries).features; + + // Tooltip setup + const tooltip = d3 + .select("#tooltip") + .style("display", "none") + .classed("tooltip", true); + + // Draw the map and add tooltip functionality + g.selectAll(".countries") + .data(countries) + .enter() + .append("path") + .attr("class", "countries") + .attr("d", path) + // .style("stroke", "white") // Moved to CSS + .style("stroke-width", 0.5) + .style("opacity", 0.75) + .style("fill", (d) => { + const pop = popMap[d.properties[idCode]]; + + if (pop) { + return color(pop); + } else { + return "gray"; + } + }) + .on("mouseover", function (d, countries) { + tooltip.transition().style("display", "inline").style("opacity", 0.9); + + // Change the style of the selected country + d3.select(this).style("opacity", 1).style("stroke-width", 2); + }) + .on("mousemove", function (d, countries) { + const pop2 = popMap[countries.properties[idCode]] + ? format(popMap[countries.properties[idCode]]) + : "NA"; + + // Create HTML string with country name and population info + let dataPoint = + "
" + + "Country: " + + countries.properties.NAME + + "
" + + "Population: " + + pop2 + + "
"; + + tooltip + .html(dataPoint) + .style("left", d.layerX + 18 + "px") + .style("top", d.layerY + 18 + "px"); + }) + .on("mouseout", function (d, countries) { + // Fade tooltip when mouse leaves + tooltip.transition().style("display", "none").style("opacity", 0); + + // Revert country to original style + d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); + }); + + // Add map pan and zoom behavior + const pad = 140; + + function zoomed() { + g.attr("transform", d3.event.transform); + } + + svg.call( + d3 + .zoom() + .scaleExtent([1, 8]) + .translateExtent([ + [0, -pad], + [svgWidth, svgHeight + pad], + ]) + .on("zoom", zoomed), + ); + + // Add legend to show population color thresholds + const w = svgWidth / 2 - 4; + const x_0 = svgWidth / 2; + const y_0 = svgHeight - 120; + const length = color.range().length; + + // Create a group to hold the legend + const legend = svg + .append("g") + .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); + + // Create a linear scale to help position legend colorblocks + const x = d3 + .scaleLinear() + .domain([1, length - 1]) + .rangeRound([w / length, (w * (length - 1)) / length]); + + // Create rectangles for each color bar + legend + .selectAll("rect") + .data(color.range()) + .join("rect") + .attr("x", (d, i) => x(i)) + .attr("width", w / length) + .attr("height", 10) + .attr("fill", (d) => d); + + // Add legend title + legend + .append("text") + .attr("y", -10) + .attr("fill", "black") + .attr("text-anchor", "start") + .attr("font-weight", "bold") + .text("Population Thresholds"); + + // Add tick marks with population values under color bars + legend + .call( + d3 + .axisBottom(x) + .tickSize(15) + .ticks(length - 1) + .tickFormat((i) => format(color.domain()[i - 1])), + ) + .select(".domain") + .remove(); +}); diff --git a/fullstack-cert/d3-projects/earth-map-project/styles.css b/fullstack-cert/d3-projects/earth-map-project/styles.css new file mode 100644 index 000000000..50f953512 --- /dev/null +++ b/fullstack-cert/d3-projects/earth-map-project/styles.css @@ -0,0 +1,25 @@ +svg { + background-color: #add8e6; + cursor: grab; +} + +svg:active { + cursor: grabbing; +} + +.countries { + stroke: #fff; +} + +.tooltip { + position: absolute; + padding: 10px; + color: #fff; + background-color: #b8b8b8; + opacity: 0; + border-radius: 5px; +} + +.label { + color: #0050a1; +} From 3a00d4b4fdadbf60dee028413d2def09c7294699 Mon Sep 17 00:00:00 2001 From: jdwilkin4 Date: Thu, 5 Mar 2026 13:45:09 -0800 Subject: [PATCH 07/11] fix: restoring old files --- .../d3v5min.js | 2 + .../index.css | 25 ++ .../index.html | 60 +++-- .../index.js | 180 +++++++++++++++ .../script.js | 191 --------------- .../worldPopulation.csv | 217 ++++++++++++++++++ 6 files changed, 452 insertions(+), 223 deletions(-) create mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3v5min.js create mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.css create mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js delete mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js create mode 100644 front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3v5min.js b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3v5min.js new file mode 100644 index 000000000..48da5d28f --- /dev/null +++ b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/d3v5min.js @@ -0,0 +1,2 @@ +// https://d3js.org v5.9.2 Copyright 2019 Mike Bostock +!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports):"function"==typeof define&&define.amd?define(["exports"],n):n(t.d3=t.d3||{})}(this,function(t){"use strict";function n(t,n){return tn?1:t>=n?0:NaN}function e(t){var e;return 1===t.length&&(e=t,t=function(t,r){return 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D3 Map of World Population

-
-
-
- Sources:
- Map made with Natural Earth
- World population data as of 2025: https://databank.worldbank.org -
+

D3 Map of World Population

+
+
+
+ Sources:
+ Map made with Natural Earth
+ World population data as of 2017: https://databank.worldbank.org +
- - - - + + + + \ No newline at end of file diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js new file mode 100644 index 000000000..6f7a4ba87 --- /dev/null +++ b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/index.js @@ -0,0 +1,180 @@ +// TopoJSON data to draw country outlines +// Source: Natural Earth 1:50m Cultural Vectors, Admin 0 - Countries +const mapPath = "./naturalEarth50TopoJSON.json"; + +// 2017 world population data. Source: https://databank.worldbank.org +const popPath = "./worldPopulation.csv"; + +// Setup +const svgWidth = 1000; +const svgHeight = 700; +const scale = svgWidth / (2 * Math.PI); +const format = d3.format(","); + +// ISO 3166-1 Alpha 3 country code identifier +const idCode = "ADM0_A3"; + +const svg = d3.select("#map") + .append("svg") + .attr("width", svgWidth) + .attr("height", svgHeight); + +const projection = d3.geoMercator() + .scale(scale) + .translate([svgWidth / 2, svgHeight / 2]) + .center([0, 20]); + +const path = d3.geoPath() + .projection(projection); + +// Create a group to hold the countries +const g = svg.append("g"); + +// Create requests to retrieve JSON topography data and CSV population data +const getJSONData = d3.json(mapPath); +const getCSVData = d3.csv(popPath); + +Promise.all([getJSONData, getCSVData]).then(function(values) { + const json = values[0]; + const population = values[1]; + + // Find the max and min population values in the data to better understand it + const popArray = population.map(d => +d.Population); + // const low = d3.min(popArray); + // const high = d3.max(popArray); + const extent = d3.extent(popArray); // [12876, 1386395000] + console.log("Min population is: " + extent[0]); // 12,876 -> Nauru + console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China + + // Create a scale to map population value to a color + const color = d3.scaleThreshold() + .domain([ + 500000, + 5000000, + 10000000, + 25000000, + 50000000, + 100000000, + 1000000000]) + .range(d3.schemeYlOrRd[8]); + + // Create an object that maps country ID to population + let popMap = {}; + population.forEach(d => { + popMap[d.ID] = +d.Population + }); + + const countries = topojson.feature(json, json.objects.countries).features; + + // Tooltip setup + const tooltip = d3.select("#tooltip") + .style("display", "none") + .classed("tooltip", true); + + // Draw the map and add tooltip functionality + g.selectAll(".countries") + .data(countries) + .enter().append("path") + .attr("class", "countries") + .attr("d", path) + // .style("stroke", "white") // Moved to CSS + .style("stroke-width", 0.5) + .style("opacity", 0.75) + .style("fill", d => { + const pop = popMap[d.properties[idCode]]; + if (pop) { + return color(pop); + } else { + return "gray" + } + }) + .on("mouseover", function(d) { + tooltip.transition() + .style("display", "inline") + .style("opacity", .9); + + // Change the style of the selected country + d3.select(this) + .style("opacity", 1) + .style("stroke-width", 2); + }) + .on("mousemove", function(d) { + const pop2 = popMap[d.properties[idCode]] ? format(popMap[d.properties[idCode]]) : "NA"; + + // Create HTML string with country name and population info + let dataPoint = "
" + + "Country: " + + d.properties.NAME + "
" + + "Population: " + + pop2 + + "
"; + + tooltip.html(dataPoint) + .style("left", (d3.event.pageX + 32) + "px") + .style("top", (d3.event.pageY + 32) + "px"); + }) + .on("mouseout", function(d) { + // Fade tooltip when mouse leaves + tooltip.transition() + .style("display", "none") + .style("opacity", 0); + + // Revert country to original style + d3.select(this) + .style("opacity", 0.75) + .style("stroke-width", 0.5); + }); + + // Add map pan and zoom behavior + const pad = 140; + + function zoomed() { + g.attr("transform", d3.event.transform); + } + + svg.call(d3.zoom() + .scaleExtent([1, 8]) + .translateExtent([[0, -pad], [svgWidth, svgHeight + pad]]) + .on("zoom", zoomed) + ); + + // Add legend to show population color thresholds + const w = svgWidth / 2 - 4; + const x_0 = svgWidth / 2; + const y_0 = svgHeight - 120; + const length = color.range().length; + + // Create a group to hold the legend + const legend = svg.append("g") + .attr("transform", "translate(" + x_0 + ", " + y_0 +")"); + + // Create a linear scale to help position legend colorblocks + const x = d3.scaleLinear() + .domain([1, length - 1]) + .rangeRound([w / length, w * (length - 1) / length]); + + // Create rectangles for each color bar + legend.selectAll("rect") + .data(color.range()) + .join("rect") + .attr("x", (d, i) => x(i)) + .attr("width", w / length) + .attr("height", 10) + .attr("fill", d => d); + + // Add legend title + legend.append("text") + .attr("y", - 10) + .attr("fill", "black") + .attr("text-anchor", "start") + .attr("font-weight", "bold") + .text("Population Thresholds"); + + // Add tick marks with population values under color bars + legend.call(d3.axisBottom(x) + .tickSize(15) + .ticks(length - 1) + .tickFormat(i => format(color.domain()[i - 1]))) + .select(".domain") + .remove(); +}); \ No newline at end of file diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js deleted file mode 100644 index 9ca96e674..000000000 --- a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/script.js +++ /dev/null @@ -1,191 +0,0 @@ -// TopoJSON data to draw country outlines -// Source: Natural Earth 1:50m Cultural Vectors, Admin 0 - Countries -const mapPath = "./naturalEarth50TopoJSON.json"; - -// 2017 world population data. Source: https://databank.worldbank.org -const popPath = - "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; - -// Setup -const svgWidth = 1000; -const svgHeight = 700; -const scale = svgWidth / (2 * Math.PI); -const format = d3.format(","); - -// ISO 3166-1 Alpha 3 country code identifier -const idCode = "ADM0_A3"; - -const svg = d3 - .select("#map") - .append("svg") - .attr("width", svgWidth) - .attr("height", svgHeight); - -const projection = d3 - .geoMercator() - .scale(scale) - .translate([svgWidth / 2, svgHeight / 2]) - .center([0, 20]); - -const path = d3.geoPath().projection(projection); - -// Create a group to hold the countries -const g = svg.append("g"); - -// Create requests to retrieve JSON topography data and CSV population data -const getJSONData = d3.json(mapPath); -const getCSVData = d3.csv(popPath); - -Promise.all([getJSONData, getCSVData]).then(function (values) { - const json = values[0]; - const population = values[1]; - - // Find the max and min population values in the data to better understand it - const popArray = population.map((d) => +d.Population); - // const low = d3.min(popArray); - // const high = d3.max(popArray); - const extent = d3.extent(popArray); // [12876, 1386395000] - console.log("Min population is: " + extent[0]); // 12,876 -> Nauru - console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China - - // Create a scale to map population value to a color - const color = d3 - .scaleThreshold() - .domain([ - 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, - ]) - .range(d3.schemeYlOrRd[8]); - - // Create an object that maps country ID to population - let popMap = {}; - population.forEach((d) => { - popMap[d.ID] = +d.Population; - }); - - const countries = topojson.feature(json, json.objects.countries).features; - - // Tooltip setup - const tooltip = d3 - .select("#tooltip") - .style("display", "none") - .classed("tooltip", true); - - // Draw the map and add tooltip functionality - g.selectAll(".countries") - .data(countries) - .enter() - .append("path") - .attr("class", "countries") - .attr("d", path) - // .style("stroke", "white") // Moved to CSS - .style("stroke-width", 0.5) - .style("opacity", 0.75) - .style("fill", (d) => { - const pop = popMap[d.properties[idCode]]; - - if (pop) { - return color(pop); - } else { - return "gray"; - } - }) - .on("mouseover", function (d, countries) { - tooltip.transition().style("display", "inline").style("opacity", 0.9); - - // Change the style of the selected country - d3.select(this).style("opacity", 1).style("stroke-width", 2); - }) - .on("mousemove", function (d, countries) { - const pop2 = popMap[countries.properties[idCode]] - ? format(popMap[countries.properties[idCode]]) - : "NA"; - - // Create HTML string with country name and population info - let dataPoint = - "
" + - "Country: " + - countries.properties.NAME + - "
" + - "Population: " + - pop2 + - "
"; - - tooltip - .html(dataPoint) - .style("left", d.layerX + 18 + "px") - .style("top", d.layerY + 18 + "px"); - }) - .on("mouseout", function (d, countries) { - // Fade tooltip when mouse leaves - tooltip.transition().style("display", "none").style("opacity", 0); - - // Revert country to original style - d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); - }); - - // Add map pan and zoom behavior - const pad = 140; - - function zoomed() { - g.attr("transform", d3.event.transform); - } - - svg.call( - d3 - .zoom() - .scaleExtent([1, 8]) - .translateExtent([ - [0, -pad], - [svgWidth, svgHeight + pad], - ]) - .on("zoom", zoomed), - ); - - // Add legend to show population color thresholds - const w = svgWidth / 2 - 4; - const x_0 = svgWidth / 2; - const y_0 = svgHeight - 120; - const length = color.range().length; - - // Create a group to hold the legend - const legend = svg - .append("g") - .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); - - // Create a linear scale to help position legend colorblocks - const x = d3 - .scaleLinear() - .domain([1, length - 1]) - .rangeRound([w / length, (w * (length - 1)) / length]); - - // Create rectangles for each color bar - legend - .selectAll("rect") - .data(color.range()) - .join("rect") - .attr("x", (d, i) => x(i)) - .attr("width", w / length) - .attr("height", 10) - .attr("fill", (d) => d); - - // Add legend title - legend - .append("text") - .attr("y", -10) - .attr("fill", "black") - .attr("text-anchor", "start") - .attr("font-weight", "bold") - .text("Population Thresholds"); - - // Add tick marks with population values under color bars - legend - .call( - d3 - .axisBottom(x) - .tickSize(15) - .ticks(length - 1) - .tickFormat((i) => format(color.domain()[i - 1])), - ) - .select(".domain") - .remove(); -}); diff --git a/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv new file mode 100644 index 000000000..999fb39fc --- /dev/null +++ b/front-end-libraries/learn-intermediate-d3-by-building-a-map-of-earth/worldPopulation.csv @@ -0,0 +1,217 @@ +ID,Name,Population +AFG,Afghanistan,35530081 +ALB,Albania,2873457 +DZA,Algeria,41318142 +ASM,American Samoa,55641 +AND,Andorra,76965 +AGO,Angola,29784193 +ATG,Antigua and Barbuda,102012 +ARG,Argentina,44271041 +ARM,Armenia,2930450 +ABW,Aruba,105264 +AUS,Australia,24601860 +AUT,Austria,8797566 +AZE,Azerbaijan,9854033 +BHS,"Bahamas, The",395361 +BHR,Bahrain,1492584 +BGD,Bangladesh,164669751 +BRB,Barbados,285719 +BLR,Belarus,9498264 +BEL,Belgium,11382393 +BLZ,Belize,374681 +BEN,Benin,11175692 +BMU,Bermuda,65441 +BTN,Bhutan,807610 +BOL,Bolivia,11051600 +BIH,Bosnia and Herzegovina,3507017 +BWA,Botswana,2291661 +BRA,Brazil,209288278 +VGB,British Virgin Islands,31196 +BRN,Brunei Darussalam,428697 +BGR,Bulgaria,7075947 +BFA,Burkina Faso,19193382 +BDI,Burundi,10864245 +CPV,Cabo Verde,546388 +KHM,Cambodia,16005373 +CMR,Cameroon,24053727 +CAN,Canada,36708083 +CYM,Cayman Islands,61559 +CAF,Central African Republic,4659080 +TCD,Chad,14899994 +CHI,Channel Islands,165314 +CHL,Chile,18054726 +CHN,China,1386395000 +COL,Colombia,49065615 +COM,Comoros,813912 +COD,"Congo, Dem. Rep.",81339988 +COG,"Congo, Rep.",5260750 +CRI,Costa Rica,4905769 +CIV,Cote d'Ivoire,24294750 +HRV,Croatia,4124531 +CUB,Cuba,11484636 +CUW,Curacao,160175 +CYP,Cyprus,1179551 +CZE,Czech Republic,10594438 +DNK,Denmark,5764980 +DJI,Djibouti,956985 +DMA,Dominica,73925 +DOM,Dominican Republic,10766998 +ECU,Ecuador,16624858 +EGY,"Egypt, Arab Rep.",97553151 +SLV,El Salvador,6377853 +GNQ,Equatorial Guinea,1267689 +ERI,Eritrea,.. +EST,Estonia,1317384 +SWZ,Eswatini,1367254 +ETH,Ethiopia,104957438 +FRO,Faroe Islands,49290 +FJI,Fiji,905502 +FIN,Finland,5508214 +FRA,France,67105513 +PYF,French Polynesia,283007 +GAB,Gabon,2025137 +GMB,"Gambia, The",2100568 +GEO,Georgia,3728004 +DEU,Germany,82685827 +GHA,Ghana,28833629 +GIB,Gibraltar,34571 +GRC,Greece,10753531 +GRL,Greenland,56171 +GRD,Grenada,107825 +GUM,Guam,164229 +GTM,Guatemala,16913503 +GIN,Guinea,12717176 +GNB,Guinea-Bissau,1861283 +GUY,Guyana,777859 +HTI,Haiti,10981229 +HND,Honduras,9265067 +HKG,"Hong Kong SAR, China",7391700 +HUN,Hungary,9787966 +ISL,Iceland,343400 +IND,India,1339180127 +IDN,Indonesia,263991379 +IRN,"Iran, Islamic Rep.",81162788 +IRQ,Iraq,38274618 +IRL,Ireland,4811321 +IMN,Isle of Man,84287 +ISR,Israel,8713300 +ITA,Italy,60536709 +JAM,Jamaica,2890299 +JPN,Japan,126785797 +JOR,Jordan,9702353 +KAZ,Kazakhstan,18037776 +KEN,Kenya,49699862 +KIR,Kiribati,116398 +PRK,"Korea, Dem. People’s Rep.",25490965 +KOR,"Korea, Rep.",51466201 +XKX,Kosovo,1830700 +KWT,Kuwait,4136528 +KGZ,Kyrgyz Republic,6198200 +LAO,Lao PDR,6858160 +LVA,Latvia,1942248 +LBN,Lebanon,6082357 +LSO,Lesotho,2233339 +LBR,Liberia,4731906 +LBY,Libya,6374616 +LIE,Liechtenstein,37922 +LTU,Lithuania,2828403 +LUX,Luxembourg,596336 +MAC,"Macao SAR, China",622567 +MDG,Madagascar,25570895 +MWI,Malawi,18622104 +MYS,Malaysia,31624264 +MDV,Maldives,436330 +MLI,Mali,18541980 +MLT,Malta,467999 +MHL,Marshall Islands,53127 +MRT,Mauritania,4420184 +MUS,Mauritius,1264613 +MEX,Mexico,129163276 +FSM,"Micronesia, Fed. Sts.",105544 +MDA,Moldova,3549196 +MCO,Monaco,38695 +MNG,Mongolia,3075647 +MNE,Montenegro,622373 +MAR,Morocco,35739580 +MOZ,Mozambique,29668834 +MMR,Myanmar,53370609 +NAM,Namibia,2533794 +NRU,Nauru,12876 +NPL,Nepal,29304998 +NLD,Netherlands,17131296 +NCL,New Caledonia,280460 +NZL,New Zealand,4793900 +NIC,Nicaragua,6217581 +NER,Niger,21477348 +NGA,Nigeria,190886311 +MKD,North Macedonia,2083160 +MNP,Northern Mariana Islands,55144 +NOR,Norway,5276968 +OMN,Oman,4636262 +PAK,Pakistan,197015955 +PLW,Palau,21729 +PAN,Panama,4098587 +PNG,Papua New Guinea,8251162 +PRY,Paraguay,6811297 +PER,Peru,32165485 +PHL,Philippines,104918090 +POL,Poland,37974826 +PRT,Portugal,10300300 +PRI,Puerto Rico,3325001 +QAT,Qatar,2639211 +ROU,Romania,19583986 +RUS,Russian Federation,144496740 +RWA,Rwanda,12208407 +WSM,Samoa,196440 +SMR,San Marino,33400 +STP,Sao Tome and Principe,204327 +SAU,Saudi Arabia,32938213 +SEN,Senegal,15850567 +SRB,Serbia,7020858 +SYC,Seychelles,95843 +SLE,Sierra Leone,7557212 +SGP,Singapore,5612253 +SXM,Sint Maarten (Dutch part),41109 +SVK,Slovak Republic,5439232 +SVN,Slovenia,2066388 +SLB,Solomon Islands,611343 +SOM,Somalia,14742523 +ZAF,South Africa,56717156 +SDS,South Sudan,12575714 +ESP,Spain,46593171 +LKA,Sri Lanka,21444000 +KNA,St. Kitts and Nevis,55345 +LCA,St. Lucia,178844 +MAF,St. Martin (French part),32125 +VCT,St. Vincent and the Grenadines,109897 +SDN,Sudan,40533330 +SUR,Suriname,563402 +SWE,Sweden,10057698 +CHE,Switzerland,8450851 +SYR,Syrian Arab Republic,18269868 +TJK,Tajikistan,8921343 +TZA,Tanzania,57310019 +THA,Thailand,69037513 +TLS,Timor-Leste,1296311 +TGO,Togo,7797694 +TON,Tonga,108020 +TTO,Trinidad and Tobago,1369125 +TUN,Tunisia,11532127 +TUR,Turkey,80745020 +TKM,Turkmenistan,5758075 +TCA,Turks and Caicos Islands,35446 +UGA,Uganda,42862958 +UKR,Ukraine,44831135 +ARE,United Arab Emirates,9400145 +GBR,United Kingdom,66023290 +USA,United States,325147121 +URY,Uruguay,3456750 +UZB,Uzbekistan,32387200 +VUT,Vanuatu,276244 +VEN,"Venezuela, RB",31977065 +VNM,Vietnam,95540800 +VIR,Virgin Islands (U.S.),107268 +PSE,West Bank and Gaza,4684777 +YEM,"Yemen, Rep.",28250420 +ZMB,Zambia,17094130 +ZWE,Zimbabwe,16529904 \ No newline at end of file From 995bd1d3369f4dd550e71d289f14cb5c0c2e6c0d Mon Sep 17 00:00:00 2001 From: Daniel Freire <20461343+danielfreire-dev@users.noreply.github.com> Date: Sun, 15 Mar 2026 18:04:48 +0000 Subject: [PATCH 08/11] updated links for fCC's CDN --- .../d3-projects/earth-map-project/index.html | 48 +-- .../d3-projects/earth-map-project/script.js | 323 +++++++++--------- .../d3-projects/earth-map-project/test.html | 4 + 3 files changed, 192 insertions(+), 183 deletions(-) create mode 100644 fullstack-cert/d3-projects/earth-map-project/test.html diff --git a/fullstack-cert/d3-projects/earth-map-project/index.html b/fullstack-cert/d3-projects/earth-map-project/index.html index eafde5adc..125c45151 100644 --- a/fullstack-cert/d3-projects/earth-map-project/index.html +++ b/fullstack-cert/d3-projects/earth-map-project/index.html @@ -1,28 +1,32 @@ - - - - - World Population + + + + + World Population - - - - + + + + + -

Map of World Population

-
-
-
- Sources:
- Map made with Natural Earth
- World population data as of 2025: https://databank.worldbank.org -
+

Map of World Population

+
+
+
+ Sources:
+ Map made with Natural Earth
+ World population data as of 2025: https://databank.worldbank.org +
- - + + diff --git a/fullstack-cert/d3-projects/earth-map-project/script.js b/fullstack-cert/d3-projects/earth-map-project/script.js index 1cb5c3d14..9f0bdf143 100644 --- a/fullstack-cert/d3-projects/earth-map-project/script.js +++ b/fullstack-cert/d3-projects/earth-map-project/script.js @@ -1,10 +1,11 @@ // Source: Natural Earth 1:50m Cultural Vectors, Admin 0 - Countries // TODO: replace with freeCodeCamp CDN link -const mapPath = "./naturalEarth50TopoJSON.json"; +const mapPath = + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/natural-Earth-50-TopoJSON.json"; // 2017 world population data. Source: https://databank.worldbank.org const popPath = - "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; // Setup const svgWidth = 1000; @@ -16,16 +17,16 @@ const format = d3.format(","); const idCode = "ADM0_A3"; const svg = d3 - .select("#map") - .append("svg") - .attr("width", svgWidth) - .attr("height", svgHeight); + .select("#map") + .append("svg") + .attr("width", svgWidth) + .attr("height", svgHeight); const projection = d3 - .geoMercator() - .scale(scale) - .translate([svgWidth / 2, svgHeight / 2]) - .center([0, 20]); + .geoMercator() + .scale(scale) + .translate([svgWidth / 2, svgHeight / 2]) + .center([0, 20]); const path = d3.geoPath().projection(projection); @@ -37,155 +38,155 @@ const getJSONData = d3.json(mapPath); const getCSVData = d3.csv(popPath); Promise.all([getJSONData, getCSVData]).then(function (values) { - const json = values[0]; - const population = values[1]; - - // Find the max and min population values in the data to better understand it - const popArray = population.map((d) => +d.Population); - // const low = d3.min(popArray); - // const high = d3.max(popArray); - const extent = d3.extent(popArray); // [12876, 1386395000] - console.log("Min population is: " + extent[0]); // 12,876 -> Nauru - console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China - - // Create a scale to map population value to a color - const color = d3 - .scaleThreshold() - .domain([ - 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, - ]) - .range(d3.schemeYlOrRd[8]); - - // Create an object that maps country ID to population - let popMap = {}; - population.forEach((d) => { - popMap[d.ID] = +d.Population; - }); - - const countries = topojson.feature(json, json.objects.countries).features; - - // Tooltip setup - const tooltip = d3 - .select("#tooltip") - .style("display", "none") - .classed("tooltip", true); - - // Draw the map and add tooltip functionality - g.selectAll(".countries") - .data(countries) - .enter() - .append("path") - .attr("class", "countries") - .attr("d", path) - // .style("stroke", "white") // Moved to CSS - .style("stroke-width", 0.5) - .style("opacity", 0.75) - .style("fill", (d) => { - const pop = popMap[d.properties[idCode]]; - - if (pop) { - return color(pop); - } else { - return "gray"; - } - }) - .on("mouseover", function (d, countries) { - tooltip.transition().style("display", "inline").style("opacity", 0.9); - - // Change the style of the selected country - d3.select(this).style("opacity", 1).style("stroke-width", 2); - }) - .on("mousemove", function (d, countries) { - const pop2 = popMap[countries.properties[idCode]] - ? format(popMap[countries.properties[idCode]]) - : "NA"; - - // Create HTML string with country name and population info - let dataPoint = - "
" + - "Country: " + - countries.properties.NAME + - "
" + - "Population: " + - pop2 + - "
"; - - tooltip - .html(dataPoint) - .style("left", d.layerX + 18 + "px") - .style("top", d.layerY + 18 + "px"); - }) - .on("mouseout", function (d, countries) { - // Fade tooltip when mouse leaves - tooltip.transition().style("display", "none").style("opacity", 0); - - // Revert country to original style - d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); - }); - - // Add map pan and zoom behavior - const pad = 140; - - function zoomed() { - g.attr("transform", d3.event.transform); - } - - svg.call( - d3 - .zoom() - .scaleExtent([1, 8]) - .translateExtent([ - [0, -pad], - [svgWidth, svgHeight + pad], - ]) - .on("zoom", zoomed), - ); - - // Add legend to show population color thresholds - const w = svgWidth / 2 - 4; - const x_0 = svgWidth / 2; - const y_0 = svgHeight - 120; - const length = color.range().length; - - // Create a group to hold the legend - const legend = svg - .append("g") - .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); - - // Create a linear scale to help position legend colorblocks - const x = d3 - .scaleLinear() - .domain([1, length - 1]) - .rangeRound([w / length, (w * (length - 1)) / length]); - - // Create rectangles for each color bar - legend - .selectAll("rect") - .data(color.range()) - .join("rect") - .attr("x", (d, i) => x(i)) - .attr("width", w / length) - .attr("height", 10) - .attr("fill", (d) => d); - - // Add legend title - legend - .append("text") - .attr("y", -10) - .attr("fill", "black") - .attr("text-anchor", "start") - .attr("font-weight", "bold") - .text("Population Thresholds"); - - // Add tick marks with population values under color bars - legend - .call( - d3 - .axisBottom(x) - .tickSize(15) - .ticks(length - 1) - .tickFormat((i) => format(color.domain()[i - 1])), - ) - .select(".domain") - .remove(); + const json = values[0]; + const population = values[1]; + + // Find the max and min population values in the data to better understand it + const popArray = population.map((d) => +d.Population); + // const low = d3.min(popArray); + // const high = d3.max(popArray); + const extent = d3.extent(popArray); // [12876, 1386395000] + console.log("Min population is: " + extent[0]); // 12,876 -> Nauru + console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China + + // Create a scale to map population value to a color + const color = d3 + .scaleThreshold() + .domain([ + 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, + ]) + .range(d3.schemeYlOrRd[8]); + + // Create an object that maps country ID to population + let popMap = {}; + population.forEach((d) => { + popMap[d.ID] = +d.Population; + }); + + const countries = topojson.feature(json, json.objects.countries).features; + + // Tooltip setup + const tooltip = d3 + .select("#tooltip") + .style("display", "none") + .classed("tooltip", true); + + // Draw the map and add tooltip functionality + g.selectAll(".countries") + .data(countries) + .enter() + .append("path") + .attr("class", "countries") + .attr("d", path) + // .style("stroke", "white") // Moved to CSS + .style("stroke-width", 0.5) + .style("opacity", 0.75) + .style("fill", (d) => { + const pop = popMap[d.properties[idCode]]; + + if (pop) { + return color(pop); + } else { + return "gray"; + } + }) + .on("mouseover", function (d, countries) { + tooltip.transition().style("display", "inline").style("opacity", 0.9); + + // Change the style of the selected country + d3.select(this).style("opacity", 1).style("stroke-width", 2); + }) + .on("mousemove", function (d, countries) { + const pop2 = popMap[countries.properties[idCode]] + ? format(popMap[countries.properties[idCode]]) + : "NA"; + + // Create HTML string with country name and population info + let dataPoint = + "
" + + "Country: " + + countries.properties.NAME + + "
" + + "Population: " + + pop2 + + "
"; + + tooltip + .html(dataPoint) + .style("left", d.layerX + 18 + "px") + .style("top", d.layerY + 18 + "px"); + }) + .on("mouseout", function (d, countries) { + // Fade tooltip when mouse leaves + tooltip.transition().style("display", "none").style("opacity", 0); + + // Revert country to original style + d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); + }); + + // Add map pan and zoom behavior + const pad = 140; + + function zoomed() { + g.attr("transform", d3.event.transform); + } + + svg.call( + d3 + .zoom() + .scaleExtent([1, 8]) + .translateExtent([ + [0, -pad], + [svgWidth, svgHeight + pad], + ]) + .on("zoom", zoomed), + ); + + // Add legend to show population color thresholds + const w = svgWidth / 2 - 4; + const x_0 = svgWidth / 2; + const y_0 = svgHeight - 120; + const length = color.range().length; + + // Create a group to hold the legend + const legend = svg + .append("g") + .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); + + // Create a linear scale to help position legend colorblocks + const x = d3 + .scaleLinear() + .domain([1, length - 1]) + .rangeRound([w / length, (w * (length - 1)) / length]); + + // Create rectangles for each color bar + legend + .selectAll("rect") + .data(color.range()) + .join("rect") + .attr("x", (d, i) => x(i)) + .attr("width", w / length) + .attr("height", 10) + .attr("fill", (d) => d); + + // Add legend title + legend + .append("text") + .attr("y", -10) + .attr("fill", "black") + .attr("text-anchor", "start") + .attr("font-weight", "bold") + .text("Population Thresholds"); + + // Add tick marks with population values under color bars + legend + .call( + d3 + .axisBottom(x) + .tickSize(15) + .ticks(length - 1) + .tickFormat((i) => format(color.domain()[i - 1])), + ) + .select(".domain") + .remove(); }); diff --git a/fullstack-cert/d3-projects/earth-map-project/test.html b/fullstack-cert/d3-projects/earth-map-project/test.html new file mode 100644 index 000000000..0d37ccbdc --- /dev/null +++ b/fullstack-cert/d3-projects/earth-map-project/test.html @@ -0,0 +1,4 @@ + From ec295a557244727f920c7afd76b11063b2341338 Mon Sep 17 00:00:00 2001 From: Daniel Freire <20461343+danielfreire-dev@users.noreply.github.com> Date: Sun, 22 Mar 2026 15:12:58 +0000 Subject: [PATCH 09/11] cleanup --- .../d3-projects/earth-map-project/script.js | 322 +++++++++--------- .../d3-projects/earth-map-project/test.html | 4 - 2 files changed, 159 insertions(+), 167 deletions(-) delete mode 100644 fullstack-cert/d3-projects/earth-map-project/test.html diff --git a/fullstack-cert/d3-projects/earth-map-project/script.js b/fullstack-cert/d3-projects/earth-map-project/script.js index 9f0bdf143..af2d54aa1 100644 --- a/fullstack-cert/d3-projects/earth-map-project/script.js +++ b/fullstack-cert/d3-projects/earth-map-project/script.js @@ -1,11 +1,11 @@ // Source: Natural Earth 1:50m Cultural Vectors, Admin 0 - Countries -// TODO: replace with freeCodeCamp CDN link + const mapPath = - "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/natural-Earth-50-TopoJSON.json"; + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/natural-Earth-50-TopoJSON.json"; -// 2017 world population data. Source: https://databank.worldbank.org +// 2025 world population data. Source: https://databank.worldbank.org const popPath = - "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; + "https://cdn.freecodecamp.org/curriculum/d3-world-pop-map-2025/world-population.csv"; // Setup const svgWidth = 1000; @@ -17,16 +17,16 @@ const format = d3.format(","); const idCode = "ADM0_A3"; const svg = d3 - .select("#map") - .append("svg") - .attr("width", svgWidth) - .attr("height", svgHeight); + .select("#map") + .append("svg") + .attr("width", svgWidth) + .attr("height", svgHeight); const projection = d3 - .geoMercator() - .scale(scale) - .translate([svgWidth / 2, svgHeight / 2]) - .center([0, 20]); + .geoMercator() + .scale(scale) + .translate([svgWidth / 2, svgHeight / 2]) + .center([0, 20]); const path = d3.geoPath().projection(projection); @@ -38,155 +38,151 @@ const getJSONData = d3.json(mapPath); const getCSVData = d3.csv(popPath); Promise.all([getJSONData, getCSVData]).then(function (values) { - const json = values[0]; - const population = values[1]; - - // Find the max and min population values in the data to better understand it - const popArray = population.map((d) => +d.Population); - // const low = d3.min(popArray); - // const high = d3.max(popArray); - const extent = d3.extent(popArray); // [12876, 1386395000] - console.log("Min population is: " + extent[0]); // 12,876 -> Nauru - console.log("Max population is: " + extent[1]); // 1,386,395,000 -> China - - // Create a scale to map population value to a color - const color = d3 - .scaleThreshold() - .domain([ - 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, - ]) - .range(d3.schemeYlOrRd[8]); - - // Create an object that maps country ID to population - let popMap = {}; - population.forEach((d) => { - popMap[d.ID] = +d.Population; - }); - - const countries = topojson.feature(json, json.objects.countries).features; - - // Tooltip setup - const tooltip = d3 - .select("#tooltip") - .style("display", "none") - .classed("tooltip", true); - - // Draw the map and add tooltip functionality - g.selectAll(".countries") - .data(countries) - .enter() - .append("path") - .attr("class", "countries") - .attr("d", path) - // .style("stroke", "white") // Moved to CSS - .style("stroke-width", 0.5) - .style("opacity", 0.75) - .style("fill", (d) => { - const pop = popMap[d.properties[idCode]]; - - if (pop) { - return color(pop); - } else { - return "gray"; - } - }) - .on("mouseover", function (d, countries) { - tooltip.transition().style("display", "inline").style("opacity", 0.9); - - // Change the style of the selected country - d3.select(this).style("opacity", 1).style("stroke-width", 2); - }) - .on("mousemove", function (d, countries) { - const pop2 = popMap[countries.properties[idCode]] - ? format(popMap[countries.properties[idCode]]) - : "NA"; - - // Create HTML string with country name and population info - let dataPoint = - "
" + - "Country: " + - countries.properties.NAME + - "
" + - "Population: " + - pop2 + - "
"; - - tooltip - .html(dataPoint) - .style("left", d.layerX + 18 + "px") - .style("top", d.layerY + 18 + "px"); - }) - .on("mouseout", function (d, countries) { - // Fade tooltip when mouse leaves - tooltip.transition().style("display", "none").style("opacity", 0); - - // Revert country to original style - d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); - }); - - // Add map pan and zoom behavior - const pad = 140; - - function zoomed() { - g.attr("transform", d3.event.transform); - } - - svg.call( - d3 - .zoom() - .scaleExtent([1, 8]) - .translateExtent([ - [0, -pad], - [svgWidth, svgHeight + pad], - ]) - .on("zoom", zoomed), - ); - - // Add legend to show population color thresholds - const w = svgWidth / 2 - 4; - const x_0 = svgWidth / 2; - const y_0 = svgHeight - 120; - const length = color.range().length; - - // Create a group to hold the legend - const legend = svg - .append("g") - .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); - - // Create a linear scale to help position legend colorblocks - const x = d3 - .scaleLinear() - .domain([1, length - 1]) - .rangeRound([w / length, (w * (length - 1)) / length]); - - // Create rectangles for each color bar - legend - .selectAll("rect") - .data(color.range()) - .join("rect") - .attr("x", (d, i) => x(i)) - .attr("width", w / length) - .attr("height", 10) - .attr("fill", (d) => d); - - // Add legend title - legend - .append("text") - .attr("y", -10) - .attr("fill", "black") - .attr("text-anchor", "start") - .attr("font-weight", "bold") - .text("Population Thresholds"); - - // Add tick marks with population values under color bars - legend - .call( - d3 - .axisBottom(x) - .tickSize(15) - .ticks(length - 1) - .tickFormat((i) => format(color.domain()[i - 1])), - ) - .select(".domain") - .remove(); + const json = values[0]; + const population = values[1]; + + // Find the max and min population values in the data to better understand it + const popArray = population.map((d) => +d.Population); + const extent = d3.extent(popArray); + + // Create a scale to map population value to a color + const color = d3 + .scaleThreshold() + .domain([ + 500000, 5000000, 10000000, 25000000, 50000000, 100000000, 1000000000, + ]) + .range(d3.schemeYlOrRd[8]); + + // Create an object that maps country ID to population + let popMap = {}; + population.forEach((d) => { + popMap[d.ID] = +d.Population; + }); + + const countries = topojson.feature(json, json.objects.countries).features; + + // Tooltip setup + const tooltip = d3 + .select("#tooltip") + .style("display", "none") + .classed("tooltip", true); + + // Draw the map and add tooltip functionality + g.selectAll(".countries") + .data(countries) + .enter() + .append("path") + .attr("class", "countries") + .attr("d", path) + // .style("stroke", "white") // Moved to CSS + .style("stroke-width", 0.5) + .style("opacity", 0.75) + .style("fill", (d) => { + const pop = popMap[d.properties[idCode]]; + + if (pop) { + return color(pop); + } else { + return "gray"; + } + }) + .on("mouseover", function (d, countries) { + tooltip.transition().style("display", "inline").style("opacity", 0.9); + + // Change the style of the selected country + d3.select(this).style("opacity", 1).style("stroke-width", 2); + }) + .on("mousemove", function (d, countries) { + const pop2 = popMap[countries.properties[idCode]] + ? format(popMap[countries.properties[idCode]]) + : "NA"; + + // Create HTML string with country name and population info + let dataPoint = + "
" + + "Country: " + + countries.properties.NAME + + "
" + + "Population: " + + pop2 + + "
"; + + tooltip + .html(dataPoint) + .style("left", d.layerX + 18 + "px") + .style("top", d.layerY + 18 + "px"); + }) + .on("mouseout", function (d, countries) { + // Fade tooltip when mouse leaves + tooltip.transition().style("display", "none").style("opacity", 0); + + // Revert country to original style + d3.select(this).style("opacity", 0.75).style("stroke-width", 0.5); + }); + + // Add map pan and zoom behavior + const pad = 140; + + function zoomed(event) { + g.attr("transform", d3.event.transform); + } + + svg.call( + d3 + .zoom() + .scaleExtent([1, 8]) + .translateExtent([ + [0, -pad], + [svgWidth, svgHeight + pad], + ]) + .on("zoom", zoomed), + ); + + // Add legend to show population color thresholds + const w = svgWidth / 2 - 4; + const x_0 = svgWidth / 2; + const y_0 = svgHeight - 120; + const length = color.range().length; + + // Create a group to hold the legend + const legend = svg + .append("g") + .attr("transform", "translate(" + x_0 + ", " + y_0 + ")"); + + // Create a linear scale to help position legend colorblocks + const x = d3 + .scaleLinear() + .domain([1, length - 1]) + .rangeRound([w / length, (w * (length - 1)) / length]); + + // Create rectangles for each color bar + legend + .selectAll("rect") + .data(color.range()) + .join("rect") + .attr("x", (d, i) => x(i)) + .attr("width", w / length) + .attr("height", 10) + .attr("fill", (d) => d); + + // Add legend title + legend + .append("text") + .attr("y", -10) + .attr("fill", "black") + .attr("text-anchor", "start") + .attr("font-weight", "bold") + .text("Population Thresholds"); + + // Add tick marks with population values under color bars + legend + .call( + d3 + .axisBottom(x) + .tickSize(15) + .ticks(length - 1) + .tickFormat((i) => format(color.domain()[i - 1])), + ) + .select(".domain") + .remove(); }); diff --git a/fullstack-cert/d3-projects/earth-map-project/test.html b/fullstack-cert/d3-projects/earth-map-project/test.html deleted file mode 100644 index 0d37ccbdc..000000000 --- a/fullstack-cert/d3-projects/earth-map-project/test.html +++ /dev/null @@ -1,4 +0,0 @@ - From 924fc6857237e0fcbef257acb4017c0ed3a2aae7 Mon Sep 17 00:00:00 2001 From: Daniel Freire <20461343+danielfreire-dev@users.noreply.github.com> Date: Sun, 22 Mar 2026 15:16:17 +0000 Subject: [PATCH 10/11] cleanup2 --- fullstack-cert/d3-projects/earth-map-project/script.js | 1 - 1 file changed, 1 deletion(-) diff --git a/fullstack-cert/d3-projects/earth-map-project/script.js b/fullstack-cert/d3-projects/earth-map-project/script.js index af2d54aa1..f15c4b913 100644 --- a/fullstack-cert/d3-projects/earth-map-project/script.js +++ b/fullstack-cert/d3-projects/earth-map-project/script.js @@ -74,7 +74,6 @@ Promise.all([getJSONData, getCSVData]).then(function (values) { .append("path") .attr("class", "countries") .attr("d", path) - // .style("stroke", "white") // Moved to CSS .style("stroke-width", 0.5) .style("opacity", 0.75) .style("fill", (d) => { From 0a382afbc8d71c8c53a5c9a94917cf06661ef584 Mon Sep 17 00:00:00 2001 From: jdwilkin4 Date: Sun, 29 Mar 2026 22:39:26 -0700 Subject: [PATCH 11/11] fix: responsive issues for mobile --- .../d3-projects/earth-map-project/script.js | 2 + .../d3-projects/earth-map-project/styles.css | 47 +++++++++++++++++++ 2 files changed, 49 insertions(+) diff --git a/fullstack-cert/d3-projects/earth-map-project/script.js b/fullstack-cert/d3-projects/earth-map-project/script.js index f15c4b913..a33dfb2f6 100644 --- a/fullstack-cert/d3-projects/earth-map-project/script.js +++ b/fullstack-cert/d3-projects/earth-map-project/script.js @@ -19,6 +19,8 @@ const idCode = "ADM0_A3"; const svg = d3 .select("#map") .append("svg") + .attr("viewBox", `0 0 ${svgWidth} ${svgHeight}`) + .attr("preserveAspectRatio", "xMidYMid meet") .attr("width", svgWidth) .attr("height", svgHeight); diff --git a/fullstack-cert/d3-projects/earth-map-project/styles.css b/fullstack-cert/d3-projects/earth-map-project/styles.css index 50f953512..6c35b92b2 100644 --- a/fullstack-cert/d3-projects/earth-map-project/styles.css +++ b/fullstack-cert/d3-projects/earth-map-project/styles.css @@ -1,4 +1,32 @@ +body { + margin: 0; + padding: 16px; + font-family: Arial, sans-serif; + box-sizing: border-box; +} + +*, +*::before, +*::after { + box-sizing: inherit; +} + +h1 { + margin: 0 0 16px; + text-align: center; + font-size: clamp(1.75rem, 4vw, 2.5rem); +} + +#map { + width: min(100%, 1000px); + margin: 0 auto; +} + svg { + display: block; + width: 100%; + height: auto; + max-width: 100%; background-color: #add8e6; cursor: grab; } @@ -13,13 +41,32 @@ svg:active { .tooltip { position: absolute; + max-width: min(240px, calc(100vw - 32px)); padding: 10px; color: #fff; background-color: #b8b8b8; opacity: 0; border-radius: 5px; + pointer-events: none; } .label { color: #0050a1; } + +footer { + width: min(100%, 1000px); + margin: 16px auto 0; + overflow-wrap: anywhere; + line-height: 1.5; +} + +@media (max-width: 640px) { + body { + padding: 12px; + } + + .tooltip { + font-size: 0.875rem; + } +}