On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Bun version 1.0.0 on 2023-09-08
In Chrome version 1 on 2008-12-11
In Chrome Android version 18 on 2012-06-27
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-29 Note: Before Edge 18, numbers are rounded to 15 decimal digits. For example, (1000000000000005).toLocaleString('en-US') returns "1,000,000,000,000,010".
In Firefox version 1 on 2004-11-09
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 5 on 1999-03-18 Note: In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, (1000000000000005).toLocaleString('en-US') returns "1,000,000,000,000,010".
In Node.js version 0.10.0 on 2013-03-11
In Quest Browser version 5.0 on undefined
In Opera version 4 on 2000-06-28
In Opera Android version 10.1 on 2010-11-09
In Safari version 1 on 2003-06-23
In Safari on iOS version 1 on 2007-06-29
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09
In WebView on iOS version 1 on 2007-06-29