<p></p>
<p dir="auto">missing 2023 in firefox<br>
<a href="https://caniuse.com/mdn-javascript_builtins_weakmap_symbol_as_keys" rel="nofollow">https://caniuse.com/mdn-javascript_builtins_weakmap_symbol_as_keys</a></p>
<p dir="auto">Is a quite esotheric feature. But really needed stuff was not added in 2023. So fine with going with 2022.</p>
<blockquote>
<p dir="auto">I'm assuming that there's going to a be a proportion of people using browsers that don't support ECMAScript 2022 since that's only a couple of years old.</p>
</blockquote>
<p dir="auto">This feels more critical as it is. The browsers are implementing features years before the spec is published.</p>

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