Is it possible to create a “weak reference” in javascript?

Question

Is there any way in javascript to create a \"weak reference\" to another object? Here is the wiki page describing what a weak reference is. Here is another article that desc

Answer 1

EcmaScript 6 (ES Harmony) has a WeakMap object. Browser support amongst modern browsers is pretty good (the last 3 versions of Firefox, chrome and even an upcoming IE version support it).