From c4685a9e3a579c253ccf8e7379c047c3a1f99106 Mon Sep 17 00:00:00 2001
From: Deema Evanov <df.creative@gmail.com>
Date: Thu, 25 Sep 2014 16:28:53 +0400
Subject: [PATCH] Make `set` chainable

`.set` should return self, according to the spec https://people.mozilla.org/~jorendorff/es6-draft.html#sec-weakmap.prototype.set
---
 weakmap.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/weakmap.js b/weakmap.js
index 8d2155a..0540742 100644
--- a/weakmap.js
+++ b/weakmap.js
@@ -20,6 +20,7 @@ if (typeof WeakMap === 'undefined') {
           entry[1] = value;
         else
           defineProperty(key, this.name, {value: [key, value], writable: true});
+        return this;
       },
       get: function(key) {
         var entry;