Project Version Detector

New Feature: Checks when a project was shared and adds a label next to the share date to indicate which version of Scratch was in use at that time.

Author: MaterArc

features/project-version-detector/data.json

@@ -0,0 +1,18 @@
+{
+    "title": "Project Version Detector",
+    "description": "Checks when a project was shared and adds a label next to the share date to indicate which version of Scratch was in use at that time.",
+    "credits": [
+      { "username": "MaterArc"
+      , "url": "https://scratch.mit.edu/users/MaterArc/" 
+    }
+    ],
+    "type": ["Website"],
+    "tags": ["New"],
+    "dynamic": true,
+    "styles": [
+      {
+        "file": "script.js",
+        "runOn": "/projects/*"
+      }
+    ]
+  }

features/project-version-detector/script.js

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+const shareDateDiv = document.querySelector('.share-date');
+
+if (shareDateDiv) {
+    const shareDateSpan = shareDateDiv.querySelector('span');
+
+    if (shareDateSpan) {
+        const shareDate = shareDateSpan.textContent.trim();
+        const shareDateObject = new Date(shareDate);
+
+        const versionDates = [
+            { version: "Scratch 1.0", date: new Date("May 15, 2007") },
+            { version: "Scratch 1.1", date: new Date("May 26, 2007") },
+            { version: "Scratch 1.2", date: new Date("December 2, 2007") },
+            { version: "Scratch 1.3", date: new Date("September 2, 2008") },
+            { version: "Scratch 1.3.1", date: new Date("November 24, 2008") },
+            { version: "Scratch 1.4", date: new Date("July 2, 2009") },
+            { version: "Scratch 2.0", date: new Date("May 9, 2013") },
+            { version: "Scratch 3.0", date: new Date("January 2, 2019") },
+        ];
+
+        let detectedVersion = null;
+
+        for (const versionInfo of versionDates) {
+            if (shareDateObject >= versionInfo.date) {
+                detectedVersion = versionInfo.version;
+            } else {
+                break;
+            }
+        }
+
+        const additionalInfoSpan = document.createElement('span');
+        additionalInfoSpan.textContent = ' • Shared in ' + detectedVersion;
+
+        shareDateSpan.parentNode.insertBefore(additionalInfoSpan, shareDateSpan.nextSibling);
+    }
+}