🏠 New in Low Baseline Support: Atomics.waitAsync

November 11, 2025

caniuse · mdn · spec

The Atomics.waitAsync() static method waits for a value in a shared memory location, providing a promise when the expected value is not yet in memory. The waitAsync() method is a non-blocking alternative to Atomics.wait().

Source features

• javascript.builtins.Atomics.waitAsync [mdn]