javascript.builtins.WeakMap

Spec

MDN URL

Status

On the standards track: Yes

Is Experimental: No

Is Deprecated: No

Browser Support

In Chrome version 36 on 2014-07-16

In Chrome Android version 36 on 2014-07-16

In Deno version 1.0 on 2020-05-13

In Edge version 12 on 2015-07-28

In Firefox version 6 on 2011-08-16

In Firefox for Android version 6 on 2011-08-16

In Internet Explorer version 11 on 2013-10-17

Not in Node.js

In Quest Browser version 5.0 on undefined

In Opera version 23 on 2014-07-22

In Opera Android version 24 on 2014-09-10

In Safari version 8 on 2014-10-16

In Safari on iOS version 8 on 2014-09-17

In Samsung Internet version 3.0 on 2015-04-10

In WebView Android version 37 on 2014-09-03