ECMAScriptの検索結果1 - 2 件 / 2件

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  Release v0.21.0 · evanw/esbuild

  • 4 users
  • github.com/evanw
  • テクノロジー
  • 2024/05/07

  This release doesn't contain any deliberately-breaking changes. However, it contains a very complex new feature and while all of esbuild's tests pass, I would not be surprised if an important edge case turns out to be broken. So I'm releasing this as a breaking change release to avoid causing any trouble. As usual, make sure to test your code when you upgrade. Implement the JavaScript decorators p

  • JavaScript

  
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  ECMAScript 2023 feature: symbols as WeakMap keys

  • 3 users
  • 2ality.com
  • テクノロジー
  • 2024/05/21

  In this blog post, we take a look at the ECMAScript 2023 feature “Symbols as WeakMap keys” – which was proposed by Robin Ricard, Rick Button, Daniel Ehrenberg, Leo Balter, Caridy Patiño, Rick Waldron, and Ashley Claymore. What are WeakMaps good for?  # The key ability of a WeakMap is to associate data with a value: The value is the key of a WeakMap entry. The data is the value of that entry. Consi

  • ECMAScript