On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Bun version 1.0.0 on 2023-09-08
In Chrome version 72 on 2019-01-29
In Chrome Android version 72 on 2019-01-29
In Deno version 1.0 on 2020-05-13
In Edge version 79 on 2020-01-15
In Firefox version 69 on 2019-09-03
In Firefox for Android version 79 on 2020-07-28
Not in Internet Explorer
In Node.js version 12.0.0 on 2019-04-23
In Quest Browser version 6.0 on undefined
In Opera version 60 on 2019-04-09
In Opera Android version 51 on 2019-03-21
In Safari version 16 on 2022-09-12 Note: Parentheses in field initializers can lead to ReferenceErrors. See bug 236843. Doesn't support public static fields. See bug 194095.
In Safari on iOS version 16 on 2022-09-12 Note: Parentheses in field initializers can lead to ReferenceErrors. See bug 236843. Doesn't support public static fields. See bug 194095.
In Samsung Internet version 11.0 on 2019-12-05
In WebView Android version 72 on 2019-01-29
In WebView on iOS version 16 on 2022-09-12 Note: Parentheses in field initializers can lead to ReferenceErrors. See bug 236843. Doesn't support public static fields. See bug 194095.