WeakRef
Read More at MDN DocsView SpecSafe to Use
WeakRef is considered safe to use.
It’s supported by 91% of global browsers.
Browsers
ChromeJul 27, 2020v84.0.0
24%╱97%
There are no users of Chrome running a supported version.
SafariApr 26, 2021v14.1.03%╱86%
There are no users of Safari running a supported version.
EdgeJul 16, 2020v84.0.04%╱100%
There are no users of Edge running a supported version.
FirefoxJul 28, 2020v79.0.03%╱95%
There are no users of Firefox running a supported version.
Servers
Node.jsJul 20, 2020v14.6.0
Node.js supports this feature.
DenoMay 4, 2020v1.0.0Deno supports this feature.
Version Breakdown
Support
Adoption
Chrome
Jul 27, 2020 v84.0.0
24%╱97%
There are no users of Chrome running a supported version.
Jul 27, 2020 – Latest
v84.0.0+
24%╱97%
Full Support
Chrome Android
Jul 27, 2020 v84.0.0
38%╱98%
There are no users of Chrome Android running a supported version.
Jul 27, 2020 – Latest
v84.0.0+
38%╱98%
Full Support
Deno
May 4, 2020 v1.0.0
Deno supports this feature.
May 4, 2020 – Latest
v1.0.0+
Full Support
Edge
Jul 16, 2020 v84.0.0
4%╱100%
There are no users of Edge running a supported version.
Jul 16, 2020 – Latest
v84.0.0+
4%╱100%
Full Support
Firefox
Jul 28, 2020 v79.0.0
3%╱95%
There are no users of Firefox running a supported version.
Jul 28, 2020 – Latest
v79.0.0+
3%╱95%
Full Support
Firefox for Android
Jul 28, 2020 v79.0.0
Firefox for Android supports this feature.
Jul 28, 2020 – Latest
v79.0.0+
Full Support
Internet Explorer
Unsupported
Internet Explorer does not support this feature.
No Support
Node.js
Jul 20, 2020 v14.6.0
Node.js supports this feature.
Jul 20, 2020 – Latest
v14.6.0+
Full Support
Oct 22, 2019 – Latest
v13.0.0+
This feature is behind the --harmony-weak-refs runtime_flag
Unknown v11.0.0
Quest Browser supports this feature.
Unknown
v11.0.0+
Full Support
Opera
Jul 27, 2020 v70.0.0
1%╱75%
There are no users of Opera running a supported version.
Jul 27, 2020 – Latest
v70.0.0+
1%╱75%
Full Support
Opera Android
Sep 23, 2020 v60.0.0
Opera Android supports this feature.
Sep 23, 2020 – Latest
v60.0.0+
Full Support
Safari
Apr 26, 2021 v14.1.0
3%╱86%
There are no users of Safari running a supported version.
Apr 26, 2021 – Latest
v14.1.0+
3%╱86%
Full Support
Safari on iOS
Apr 26, 2021 v14.5.0
16%╱91%
There are no users of Safari on iOS running a supported version.
Apr 26, 2021 – Latest
v14.5.0+
16%╱91%
Full Support
Samsung Internet
Apr 17, 2021 v14.0.0
2%╱88%
There are no users of Samsung Internet running a supported version.
Apr 17, 2021 – Latest
v14.0.0+
2%╱88%
Full Support
WebView Android
Jul 27, 2020 v84.0.0
WebView Android supports this feature.
Jul 27, 2020 – Latest
v84.0.0+
Full Support