ubdate

node_modules/es6-weak-map/is-implemented.js

@@ -0,0 +1,21 @@
+"use strict";
+
+module.exports = function () {
+	var weakMap, obj;
+
+	if (typeof WeakMap !== "function") return false;
+	try {
+		// WebKit doesn't support arguments and crashes
+		weakMap = new WeakMap([[obj = {}, "one"], [{}, "two"], [{}, "three"]]);
+	} catch (e) {
+		return false;
+	}
+	if (String(weakMap) !== "[object WeakMap]") return false;
+	if (typeof weakMap.set !== "function") return false;
+	if (weakMap.set({}, 1) !== weakMap) return false;
+	if (typeof weakMap.delete !== "function") return false;
+	if (typeof weakMap.has !== "function") return false;
+	if (weakMap.get(obj) !== "one") return false;
+
+	return true;
+};