Web platform features explorer

Sign extension operators (WebAssembly)

Widely available since 2023-10-26
Tags: webassembly Groups: WebAssembly

Sign-extension operator instructions extend the width of 8-bit, 16-bit, and 32-bit values to 32-bit and 64-bit values.

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Browser support (view on caniuse.com)

  • Chrome 69 Released on 2018-09-04
  • Chrome Android 69 Released on 2018-09-04
  • Edge 18 Released on 2018-10-02
  • Firefox 62 Released on 2018-09-05
  • Firefox for Android 62 Released on 2018-09-05
  • Safari 14.1 Released on 2021-04-26
  • Safari on iOS 14.5 Released on 2021-04-26