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Web Platform Baseline Status Breakdown Total Features: 1191
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Categories: All CSS (101) HTML elements (98) Selectors (46) JavaScript (43) Forms (40)
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Showing 4 of 4 features

2021

4 features
• December 2021

The SharedArrayBuffer object represents bytes shared between multiple workers and the main thread. The Atomics object safely accesses SharedArrayBuffer data to make sure predictable values are read and written and that operations are not interrupted.

Chrome 68
Firefox 79
Safari 15.2
Edge 79
Baseline Date: Dec 13, 2021
• September 2021
Widely Available

The BigInt64Array and BigUint64Array typed arrays represent 64-bit integers, signed and unsigned respectively.

Chrome 67
Firefox 68
Safari 15
Edge 79
Baseline Date: Sep 20, 2021
Widely Available

The cause property of errors records the specific original cause of the error, particularly for errors that have been re-thrown.

Chrome 93
Firefox 91
Safari 15
Edge 93
Baseline Date: Sep 20, 2021
• April 2021
Widely Available

The WeakRef and FinalizationRegistry objects hold references to garbage-collectable objects without creating strong references that prevent their garbage collection.

Chrome 84
Firefox 79
Safari 14.1
Edge 84
Baseline Date: Apr 26, 2021