feat(sdk)!: add delete method for MutJson class

examples/tests/sdk_tests/std/json.test.w

@@ -178,4 +178,25 @@ test "deepCopy(), deepCopyMut()" {
   assert(copy != copyMut);
 
   assert(copyMut.get("object") == mutation);
+}
+
+test "delete() for MutJson" {
+  let mutObj = MutJson { x: 1, y: 2 };
+  mutObj.delete("x");
+  let assertThrows = (expected: str, block: (): void) => {
+    let var error = false;
+    try {
+      block();
+    } catch actual {
+      assert(actual == expected);
+      error = true;
+    }
+    assert(error);
+  };
+
+  let JSON_PROPERTY_DOES_NOT_EXIST_ERROR = "Json property \"x\" does not exist";
+  assertThrows(JSON_PROPERTY_DOES_NOT_EXIST_ERROR, () => {
+    mutObj.get("x");
+  });
+  assert(mutObj.delete("random key that doesn't exist") == true);
 }

libs/wingsdk/src/std/json.ts

@@ -453,4 +453,17 @@ export class MutJson {
   public tryAsBool(): boolean | undefined {
     throw new Error("Macro");
   }
+
+    /**
+   * Removes the specified element from a map.
+   *
+   * @macro (delete ($self$)[$args$])
+   *
+   * @param key The key
+   * @returns true if the given key is no longer present
+   */
+    public delete(key: string): boolean {
+      key;
+      throw new Error("Macro");
+    }
 }