Allow data_insertatlist to add new items

Resolves #2
valadaptive · Jun 2, 2024 · 34065d1 · 34065d1
1 parent 78cf1cb
commit 34065d1
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/blocks.ts b/src/blocks.ts
@@ -2096,7 +2096,8 @@ export const data_insertatlist = new ProtoBlock({
         const item = ctx.evaluateFast(ITEM);
         const index = ctx.evaluateFast(INDEX);
         const list = ctx.lookupOrCreateList(LIST.value);
-        const numIndex = toListIndex(index, list.length);
+        // Allow new items to be inserted 1 past the end of the list
+        const numIndex = toListIndex(index, list.length + 1);
         if (numIndex !== 0) list.splice(numIndex - 1, 0, item);
     },
     colorCategory: 'data_lists',