Commit updated Javascript packages

build/javascript/node_modules/preact/compat/src/util.js

@@ -0,0 +1,23 @@
+/**
+ * Assign properties from `props` to `obj`
+ * @template O, P The obj and props types
+ * @param {O} obj The object to copy properties to
+ * @param {P} props The object to copy properties from
+ * @returns {O & P}
+ */
+export function assign(obj, props) {
+	for (let i in props) obj[i] = props[i];
+	return /** @type {O & P} */ (obj);
+}
+
+/**
+ * Check if two objects have a different shape
+ * @param {object} a
+ * @param {object} b
+ * @returns {boolean}
+ */
+export function shallowDiffers(a, b) {
+	for (let i in a) if (i !== '__source' && !(i in b)) return true;
+	for (let i in b) if (i !== '__source' && a[i] !== b[i]) return true;
+	return false;
+}