WeakSet
Read More at MDN DocsView SpecSafe to Use
WeakSet is considered safe to use.
It’s supported by 94% of global browsers.
Browsers
ChromeJul 16, 2014v36.0.0
26%╱100%
100% of Chrome users are running a supported version.
SafariSep 30, 2015v9.0.05%╱100%
100% of Safari users are running a supported version.
EdgeJul 28, 2015v12.0.05%╱100%
100% of Edge users are running a supported version.
FirefoxDec 1, 2014v34.0.03%╱100%
100% of Firefox users are running a supported version.
Servers
Node.jsFeb 6, 2015v0.12.0
Node.js supports this feature.
DenoMay 4, 2020v1.0.0Deno supports this feature.
Version Breakdown
Support
Adoption
Chrome
Jul 16, 2014 v36.0.0
26%╱100%
100% of Chrome users are running a supported version.
Jul 16, 2014 – Latest
v36.0.0+
26%╱100%
Full Support
Chrome Android
Jul 16, 2014 v36.0.0
36%╱100%
100% of Chrome Android users are running a supported version.
Jul 16, 2014 – Latest
v36.0.0+
36%╱100%
Full Support
Deno
May 4, 2020 v1.0.0
Deno supports this feature.
May 4, 2020 – Latest
v1.0.0+
Full Support
Edge
Jul 28, 2015 v12.0.0
5%╱100%
100% of Edge users are running a supported version.
Jul 28, 2015 – Latest
v12.0.0+
5%╱100%
Full Support
Firefox
Dec 1, 2014 v34.0.0
3%╱100%
100% of Firefox users are running a supported version.
Dec 1, 2014 – Latest
v34.0.0+
3%╱100%
Full Support
Firefox for Android
Dec 1, 2014 v34.0.0
Firefox for Android supports this feature.
Dec 1, 2014 – Latest
v34.0.0+
Full Support
Internet Explorer
Unsupported
Internet Explorer does not support this feature.
No Support
Node.js
Feb 6, 2015 v0.12.0
Node.js supports this feature.
Feb 6, 2015 – Latest
v0.12.0+
Full Support
Unknown v5.0.0
Quest Browser supports this feature.
Unknown
v5.0.0+
Full Support
Opera
Jul 22, 2014 v23.0.0
1%╱100%
100% of Opera users are running a supported version.
Jul 22, 2014 – Latest
v23.0.0+
1%╱100%
Full Support
Opera Android
Sep 10, 2014 v24.0.0
Opera Android supports this feature.
Sep 10, 2014 – Latest
v24.0.0+
Full Support
Safari
Sep 30, 2015 v9.0.0
5%╱100%
100% of Safari users are running a supported version.
Sep 30, 2015 – Latest
v9.0.0+
5%╱100%
Full Support
Safari on iOS
Sep 16, 2015 v9.0.0
16%╱100%
There are no users of Safari on iOS running a supported version.
Sep 16, 2015 – Latest
v9.0.0+
16%╱100%
Full Support
Samsung Internet
Apr 10, 2015 v3.0.0
2%╱97%
There are no users of Samsung Internet running a supported version.
Apr 10, 2015 – Latest
v3.0.0+
2%╱97%
Full Support
WebView Android
Sep 3, 2014 v37.0.0
WebView Android supports this feature.
Sep 3, 2014 – Latest
v37.0.0+
Full Support