From cb33849b4ddb10ed85efff8c79d777855dd386d2 Mon Sep 17 00:00:00 2001
From: Sameer Brink <122649269+LegoBrainBiker@users.noreply.github.com>
Date: Thu, 9 Apr 2026 09:24:48 -0700
Subject: [PATCH 1/9] Skyhight173/json: add cache to improve performance

---
 extensions/Skyhigh173/json.js | 115 +++++++++++++++++++---------------
 1 file changed, 64 insertions(+), 51 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 8901233a82..b91dc8b00b 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -13,6 +13,19 @@
    */
 
   const vm = Scratch.vm;
+  const objectCache = {}
+  function parse(string) {
+    return objectCache[string] ?? JSON.parse(string);
+  }
+  function stringify(object) {
+    const string = JSON.stringify(object);
+    objectCache[string] = object;
+    setTimeout(() => {
+      delete objectCache[string];
+    }, 100); // store it in the cache for 100 ms
+    return string;
+  }
+  
   const hasOwn = (obj, property) =>
     Object.prototype.hasOwnProperty.call(obj, property);
 
@@ -661,7 +674,7 @@
         return false;
       } else {
         try {
-          JSON.parse(json);
+          parse(json);
           return true;
         } catch {
           return false;
@@ -680,7 +693,7 @@
         return json;
       } else {
         try {
-          return JSON.parse(json) ?? "";
+          return parse(json) ?? "";
         } catch {
           return json;
         }
@@ -690,7 +703,7 @@
     json_is({ json, types }) {
       if (!this.json_is_valid({ json: json })) return false;
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         switch (types) {
           case "Object":
             return !Array.isArray(json);
@@ -706,7 +719,7 @@
 
     json_length({ json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         return Object.keys(json).length;
       } catch {
         return " ";
@@ -728,7 +741,7 @@
       try {
         return (
           this._fixInvalidJSONValues(this.json_valid_return(key)) in
-          JSON.parse(json)
+          parse(json)
         );
       } catch {
         return false;
@@ -737,7 +750,7 @@
 
     json_has_value({ json, value }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         value = this.json_valid_return(value);
         return json.includes(value);
       } catch {
@@ -747,8 +760,8 @@
 
     json_equal({ json1, equal, json2 }) {
       try {
-        json1 = JSON.parse(json1);
-        json2 = JSON.parse(json2);
+        json1 = parse(json1);
+        json2 = parse(json2);
 
         const keys1 = Object.keys(json1);
         const keys2 = Object.keys(json2);
@@ -765,16 +778,16 @@
 
     json_get_all({ Stype, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         switch (Stype) {
           case "keys":
-            return JSON.stringify(Object.keys(json).map((key) => key ?? ""));
+            return stringify(Object.keys(json).map((key) => key ?? ""));
           case "values":
-            return JSON.stringify(
+            return stringify(
               Object.keys(json).map((key) => json[key] ?? "")
             );
           case "datas":
-            return JSON.stringify(
+            return stringify(
               Object.keys(json).map((key) => [key, json[key] ?? ""])
             );
           default:
@@ -787,11 +800,11 @@
 
     json_get({ item, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         if (hasOwn(json, item)) {
           const result = json[item] ?? "";
           if (typeof result === "object") {
-            return JSON.stringify(result);
+            return stringify(result);
           } else {
             return result;
           }
@@ -813,11 +826,11 @@
 
     json_set({ item, value, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         value = this.json_valid_return(value);
         value = this._fixInvalidJSONValues(value);
         json[item] = value;
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -825,9 +838,9 @@
 
     json_delete({ item, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         delete json[item];
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -846,7 +859,7 @@
         if (item > 0) {
           item--;
         }
-        json = JSON.parse(json);
+        json = parse(json);
         let result;
         if (item >= 0) {
           result = json[item];
@@ -856,7 +869,7 @@
         }
         result = result ?? "";
         if (typeof result == "object") {
-          return JSON.stringify(result);
+          return stringify(result);
         } else {
           return result;
         }
@@ -867,9 +880,9 @@
 
     json_array_itemH({ item, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
-        let result = JSON.stringify(json.indexOf(item) + 1);
+        let result = stringify(json.indexOf(item) + 1);
         return result;
       } catch {
         return "";
@@ -878,7 +891,7 @@
 
     json_array_from({ json }) {
       try {
-        return JSON.stringify(Array.from(String(json)));
+        return stringify(Array.from(String(json)));
       } catch {
         return "";
       }
@@ -886,9 +899,9 @@
 
     json_array_concat({ json, json2 }) {
       try {
-        json = JSON.parse(json);
-        json2 = JSON.parse(json2);
-        return JSON.stringify(json.concat(json2));
+        json = parse(json);
+        json2 = parse(json2);
+        return stringify(json.concat(json2));
       } catch {
         return "";
       }
@@ -896,10 +909,10 @@
 
     json_array_push({ item, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
         json.push(item);
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -907,10 +920,10 @@
 
     json_array_insert({ item, pos, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
         json.splice(pos - 1, 0, item);
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -918,11 +931,11 @@
 
     json_array_set({ item, pos, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         json[pos - 1] = this._fixInvalidJSONValues(
           this.json_valid_return(item)
         );
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -930,9 +943,9 @@
 
     json_array_delete({ item, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         json.splice(item - 1, 1);
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -940,7 +953,7 @@
 
     json_array_remove_all({ item, json }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
         let i = 0;
         while (i < json.length) {
@@ -950,7 +963,7 @@
             ++i;
           }
         }
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -958,7 +971,7 @@
 
     json_array_fromto({ json, item, item2 }) {
       try {
-        return JSON.stringify(JSON.parse(json).slice(item - 1, item2));
+        return stringify(parse(json).slice(item - 1, item2));
       } catch {
         return "";
       }
@@ -966,7 +979,7 @@
 
     json_array_reverse({ json }) {
       try {
-        return JSON.stringify(JSON.parse(json).reverse());
+        return stringify(parse(json).reverse());
       } catch {
         return "";
       }
@@ -974,19 +987,19 @@
 
     json_array_flat({ json, depth }) {
       try {
-        return JSON.stringify(JSON.parse(json).flat(depth));
+        return stringify(parse(json).flat(depth));
       } catch {
         return "";
       }
     }
 
     json_array_create({ text, d }) {
-      return JSON.stringify(String(text).split(d));
+      return stringify(String(text).split(d));
     }
 
     json_array_join({ json, d }) {
       try {
-        return JSON.parse(json).join(d);
+        return parse(json).join(d);
       } catch {
         return "";
       }
@@ -994,8 +1007,8 @@
 
     json_array_filter({ key, json }) {
       try {
-        json = JSON.parse(json);
-        return JSON.stringify(
+        json = parse(json);
+        return stringify(
           json.map((x) => {
             if (hasOwn(x, key)) {
               return x[key];
@@ -1010,9 +1023,9 @@
 
     json_array_setlen({ json, len }) {
       try {
-        json = JSON.parse(json);
+        json = parse(json);
         json.length = len;
-        return JSON.stringify(json);
+        return stringify(json);
       } catch {
         return "";
       }
@@ -1022,7 +1035,7 @@
       try {
         let listVariable = this.lookupList(list, util);
         if (listVariable) {
-          return JSON.stringify(listVariable.value);
+          return stringify(listVariable.value);
         }
       } catch (e) {
         // ignore
@@ -1033,10 +1046,10 @@
       try {
         let listVariable = this.lookupList(list, util);
         if (listVariable) {
-          const array = JSON.parse(json);
+          const array = parse(json);
           if (Array.isArray(array)) {
             const safeArray = array.map((i) => {
-              if (typeof i === "object") return JSON.stringify(i);
+              if (typeof i === "object") return stringify(i);
               return i ?? "";
             });
             listVariable.value = safeArray;
@@ -1051,7 +1064,7 @@
     json_array_sort(args) {
       let list;
       try {
-        list = JSON.parse(args.list);
+        list = parse(args.list);
       } catch {
         return "";
       }
@@ -1060,12 +1073,12 @@
       }
       list.sort(Scratch.Cast.compare);
       if (args.order === "descending") list.reverse();
-      return JSON.stringify(list);
+      return stringify(list);
     }
     json_array_analysis(args) {
       let list;
       try {
-        list = JSON.parse(args.list);
+        list = parse(args.list);
       } catch {
         return 0;
       }

From 5093b213d9db460fb04009de1aabfc11bfb272c5 Mon Sep 17 00:00:00 2001
From: "DangoCat[bot]" <dangocat@users.noreply.github.com>
Date: Thu, 9 Apr 2026 17:05:46 +0000
Subject: [PATCH 2/9] [Automated] Format code

---
 extensions/Skyhigh173/json.js | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index b91dc8b00b..28bbf5fe1c 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -13,7 +13,7 @@
    */
 
   const vm = Scratch.vm;
-  const objectCache = {}
+  const objectCache = {};
   function parse(string) {
     return objectCache[string] ?? JSON.parse(string);
   }
@@ -25,7 +25,7 @@
     }, 100); // store it in the cache for 100 ms
     return string;
   }
-  
+
   const hasOwn = (obj, property) =>
     Object.prototype.hasOwnProperty.call(obj, property);
 
@@ -740,8 +740,7 @@
     json_has_key({ json, key }) {
       try {
         return (
-          this._fixInvalidJSONValues(this.json_valid_return(key)) in
-          parse(json)
+          this._fixInvalidJSONValues(this.json_valid_return(key)) in parse(json)
         );
       } catch {
         return false;
@@ -783,9 +782,7 @@
           case "keys":
             return stringify(Object.keys(json).map((key) => key ?? ""));
           case "values":
-            return stringify(
-              Object.keys(json).map((key) => json[key] ?? "")
-            );
+            return stringify(Object.keys(json).map((key) => json[key] ?? ""));
           case "datas":
             return stringify(
               Object.keys(json).map((key) => [key, json[key] ?? ""])

From 1ec5492ed0bf6d4f1e787fe5d8960b5ff89d882e Mon Sep 17 00:00:00 2001
From: Sameer Brink <122649269+LegoBrainBiker@users.noreply.github.com>
Date: Thu, 9 Apr 2026 19:25:27 -0700
Subject: [PATCH 3/9] Skyhight173/json: also cache on parse

---
 extensions/Skyhigh173/json.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 28bbf5fe1c..ae3718c7dd 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -15,7 +15,9 @@
   const vm = Scratch.vm;
   const objectCache = {};
   function parse(string) {
-    return objectCache[string] ?? JSON.parse(string);
+    return objectCache[string] ?? (setTimeout(() => {
+      delete objectCache[string];
+    }, 100), objectCache[string] = JSON.parse(string));
   }
   function stringify(object) {
     const string = JSON.stringify(object);

From 26ce23032c5b8c13f90e36b7b8afeff329b018c0 Mon Sep 17 00:00:00 2001
From: "DangoCat[bot]" <dangocat@users.noreply.github.com>
Date: Fri, 10 Apr 2026 02:26:54 +0000
Subject: [PATCH 4/9] [Automated] Format code

---
 extensions/Skyhigh173/json.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index ae3718c7dd..6c505be4f9 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -15,9 +15,13 @@
   const vm = Scratch.vm;
   const objectCache = {};
   function parse(string) {
-    return objectCache[string] ?? (setTimeout(() => {
-      delete objectCache[string];
-    }, 100), objectCache[string] = JSON.parse(string));
+    return (
+      objectCache[string] ??
+      (setTimeout(() => {
+        delete objectCache[string];
+      }, 100),
+      (objectCache[string] = JSON.parse(string)))
+    );
   }
   function stringify(object) {
     const string = JSON.stringify(object);

From 6959b15a4db989a059351a02a62a6c5d13240bb3 Mon Sep 17 00:00:00 2001
From: Sameer Brink <122649269+LegoBrainBiker@users.noreply.github.com>
Date: Thu, 9 Apr 2026 20:04:49 -0700
Subject: [PATCH 5/9] Skyhight173/json: clear cache on an interval

---
 extensions/Skyhigh173/json.js | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 6c505be4f9..91819b7d0d 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -13,22 +13,18 @@
    */
 
   const vm = Scratch.vm;
-  const objectCache = {};
+  let objectCache = {};
+  setInterval(100, () => { // clear the cache every 0.1 second
+    objectCache = {};
+  });
   function parse(string) {
     return (
-      objectCache[string] ??
-      (setTimeout(() => {
-        delete objectCache[string];
-      }, 100),
-      (objectCache[string] = JSON.parse(string)))
+      objectCache[string] ?? (objectCache[string] = JSON.parse(string))
     );
   }
   function stringify(object) {
     const string = JSON.stringify(object);
     objectCache[string] = object;
-    setTimeout(() => {
-      delete objectCache[string];
-    }, 100); // store it in the cache for 100 ms
     return string;
   }
 

From 69c46bcf850f52be3fc87c034e3c0a2a1a079c02 Mon Sep 17 00:00:00 2001
From: "DangoCat[bot]" <dangocat@users.noreply.github.com>
Date: Fri, 10 Apr 2026 03:05:34 +0000
Subject: [PATCH 6/9] [Automated] Format code

---
 extensions/Skyhigh173/json.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 91819b7d0d..751d9c5dca 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -14,13 +14,12 @@
 
   const vm = Scratch.vm;
   let objectCache = {};
-  setInterval(100, () => { // clear the cache every 0.1 second
+  setInterval(100, () => {
+    // clear the cache every 0.1 second
     objectCache = {};
   });
   function parse(string) {
-    return (
-      objectCache[string] ?? (objectCache[string] = JSON.parse(string))
-    );
+    return objectCache[string] ?? (objectCache[string] = JSON.parse(string));
   }
   function stringify(object) {
     const string = JSON.stringify(object);

From 6dfaca116feb55046dd6619df24ce5215ba0e91d Mon Sep 17 00:00:00 2001
From: Sameer Brink <122649269+LegoBrainBiker@users.noreply.github.com>
Date: Thu, 9 Apr 2026 20:08:21 -0700
Subject: [PATCH 7/9] Skyhight173/json: put the parameters in the right order

Fix setInterval usage to correctly clear the cache.
---
 extensions/Skyhigh173/json.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 751d9c5dca..754d680ec5 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -14,10 +14,9 @@
 
   const vm = Scratch.vm;
   let objectCache = {};
-  setInterval(100, () => {
-    // clear the cache every 0.1 second
+  setInterval(() => {
     objectCache = {};
-  });
+  }, 100); // clear the cache every 0.1 second
   function parse(string) {
     return objectCache[string] ?? (objectCache[string] = JSON.parse(string));
   }

From 40b0ce53c1ab08d04b8abb0443b54d5bfe887858 Mon Sep 17 00:00:00 2001
From: Sameer Brink <122649269+LegoBrainBiker@users.noreply.github.com>
Date: Sat, 16 May 2026 10:30:58 -0700
Subject: [PATCH 8/9] Skyhigh173/JSON: make copies of objects/arrays before
 editing them

---
 extensions/Skyhigh173/json.js | 41 +++++++++++++++++------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 754d680ec5..2d34227512 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -766,7 +766,7 @@
         const keys2 = Object.keys(json2);
         const result =
           keys1.length === keys2.length &&
-          Object.keys(json1).every((key) => json1[key] === json2[key]);
+          keys1.every((key) => json1[key] === json2[key]);
         if (equal === "=") return result;
         if (equal === "≠") return !result;
       } catch {
@@ -826,7 +826,10 @@
         json = parse(json);
         value = this.json_valid_return(value);
         value = this._fixInvalidJSONValues(value);
-        json[item] = value;
+        json = {
+          ...json,
+          [item]: value,
+        };
         return stringify(json);
       } catch {
         return "";
@@ -835,7 +838,7 @@
 
     json_delete({ item, json }) {
       try {
-        json = parse(json);
+        json = { ...parse(json) };
         delete json[item];
         return stringify(json);
       } catch {
@@ -908,8 +911,7 @@
       try {
         json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
-        json.push(item);
-        return stringify(json);
+        return stringify(json.concat(item));
       } catch {
         return "";
       }
@@ -919,7 +921,7 @@
       try {
         json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
-        json.splice(pos - 1, 0, item);
+        json = json.toSpliced(pos - 1, 0, item);
         return stringify(json);
       } catch {
         return "";
@@ -929,8 +931,12 @@
     json_array_set({ item, pos, json }) {
       try {
         json = parse(json);
-        json[pos - 1] = this._fixInvalidJSONValues(
-          this.json_valid_return(item)
+        json = json.toSpliced(
+          pos - 1,
+          1,
+          this._fixInvalidJSONValues(
+            this.json_valid_return(item)
+          )
         );
         return stringify(json);
       } catch {
@@ -941,7 +947,7 @@
     json_array_delete({ item, json }) {
       try {
         json = parse(json);
-        json.splice(item - 1, 1);
+        json = json.toSpliced(item - 1, 1);
         return stringify(json);
       } catch {
         return "";
@@ -952,15 +958,7 @@
       try {
         json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
-        let i = 0;
-        while (i < json.length) {
-          if (json[i] === item) {
-            json.splice(i, 1);
-          } else {
-            ++i;
-          }
-        }
-        return stringify(json);
+        return stringify(json.filter((v) => (v !==item)));
       } catch {
         return "";
       }
@@ -1020,7 +1018,7 @@
 
     json_array_setlen({ json, len }) {
       try {
-        json = parse(json);
+        json = [...parse(json)];
         json.length = len;
         return stringify(json);
       } catch {
@@ -1068,8 +1066,9 @@
       if (!Array.isArray(list)) {
         return "";
       }
-      list.sort(Scratch.Cast.compare);
-      if (args.order === "descending") list.reverse();
+      list = list.toSorted((value1, value2) => (
+        Scratch.Cast.compare(value1,value2) * ((args.order === "ascending") ? 1 : -1)
+      ));
       return stringify(list);
     }
     json_array_analysis(args) {

From 173c75f37406a040b4d1b8c97652030ae706417b Mon Sep 17 00:00:00 2001
From: "DangoCat[bot]" <dangocat@users.noreply.github.com>
Date: Sat, 16 May 2026 17:32:22 +0000
Subject: [PATCH 9/9] [Automated] Format code

---
 extensions/Skyhigh173/json.js | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/extensions/Skyhigh173/json.js b/extensions/Skyhigh173/json.js
index 2d34227512..89dac19fa3 100644
--- a/extensions/Skyhigh173/json.js
+++ b/extensions/Skyhigh173/json.js
@@ -934,9 +934,7 @@
         json = json.toSpliced(
           pos - 1,
           1,
-          this._fixInvalidJSONValues(
-            this.json_valid_return(item)
-          )
+          this._fixInvalidJSONValues(this.json_valid_return(item))
         );
         return stringify(json);
       } catch {
@@ -958,7 +956,7 @@
       try {
         json = parse(json);
         item = this._fixInvalidJSONValues(this.json_valid_return(item));
-        return stringify(json.filter((v) => (v !==item)));
+        return stringify(json.filter((v) => v !== item));
       } catch {
         return "";
       }
@@ -1066,9 +1064,11 @@
       if (!Array.isArray(list)) {
         return "";
       }
-      list = list.toSorted((value1, value2) => (
-        Scratch.Cast.compare(value1,value2) * ((args.order === "ascending") ? 1 : -1)
-      ));
+      list = list.toSorted(
+        (value1, value2) =>
+          Scratch.Cast.compare(value1, value2) *
+          (args.order === "ascending" ? 1 : -1)
+      );
       return stringify(list);
     }
     json_array_analysis(args) {