Atomics.pause()

The Atomics.pause() static method gives a hint to the CPU that the code calling the method is in a short-duration wait for shared memory, known as spinning or a spinlock.

Baseline Status: Achieved Newly Available on Apr 1, 2025 across core engines.

Desktop Browser Engine Support

Google Chrome

133

Supported

Mozilla Firefox

137

Supported

Apple Safari

18.4

Supported

Microsoft Edge

133

Supported

Mobile Browser Engine Support

Chrome Android

133

Firefox Android

137

Safari iOS

18.4

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

javascript.builtins.Atomics.pause ↗