Intent to ship: Resizable and Growable ArrayBuffers

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Daniel Minor

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May 15, 2024, 2:24:25 PMMay 15

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As of Firefox 128 I intend to turn Resizable and Growable ArrayBuffers on by default. They have been developed behind the --javascript.options.experimental.sharedarraybuffer_growable and --javascript.options.experimental.arraybuffer_resizable preferences. The proposal advanced to Stage 4 of the TC39 process during the September 2023 plenary and has already been shipped in JavaScriptCore and V8.

Bug to turn on by default: https://bugzilla.mozilla.org/show_bug.cgi?id=1884150

Standard: https://github.com/tc39/proposal-resizablearraybuffer/

This feature was implemented by a contributor in Firefox 124 and we unfortunately did not send an intent to prototype message to this list at that time. We'll try to be better about this in the future.