*Summary:* This proposal allows Symbols can be used as keys in WeakMap/WeakSet, and as the target in WeakRef/FinalizationRegistry
*Bug:* https://bugzilla.mozilla.org/show_bug.cgi?id=1828144 *Standards body:* https://tc39.es/proposal-symbols-as-weakmap-keys/ This proposal has been merged into ecma262 https://tc39.es/ecma262/multipage/executable-code-and-execution-contexts.html#sec-canbeheldweakly *Platform coverage:* All *Preference:* N/A yet *Other browsers:* Chrome has shipped this since 108 behind the flag "--harmony-symbol-as-weakmap-key" https://groups.google.com/a/chromium.org/g/blink-dev/c/E6pDZP_TiBA/m/ZcXLwiz8AAAJ and has been enabled by default since April 2023 https://chromium.googlesource.com/v8/v8/+/71ff68830279b7ad6719db066b21f0489e871596 Safari has shipped this since 16.4 https://developer.apple.com/documentation/safari-release-notes/safari-16_4-release-notes *web-platform-tests:* Tests are located in in test262/ https://github.com/tc39/test262/pull/3678 -- You received this message because you are subscribed to the Google Groups "dev-platform@mozilla.org" group. To unsubscribe from this group and stop receiving emails from it, send an email to dev-platform+unsubscr...@mozilla.org. To view this discussion on the web visit https://groups.google.com/a/mozilla.org/d/msgid/dev-platform/CAJ5FAhV0EyzRBCLoKYwQHLTeu3T3CJCrn6waCnboF695m_h9Vw%40mail.gmail.com.