chore: update to version 14.0.11 and align website URLs

packages/util/is/undefined.js

@@ -0,0 +1,17 @@
+/**
+ * @name isUndefined
+ * @summary Tests for a `undefined` values.
+ * @description
+ * Checks to see if the input value is `undefined`.
+ * @example
+ * <BR>
+ *
+ * ```javascript
+ * import { isUndefined } from '@pezkuwi/util';
+ *
+ * console.log('isUndefined', isUndefined(void(0))); // => true
+ * ```
+ */
+export function isUndefined(value) {
+    return value === undefined;
+}