Microsoft/TypeScript

JS | Optional chaining left hand assignment not detected as syntax error.

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#57,640 创建于 2024年3月4日

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 (9 评论) (0 反应) (0 负责人)TypeScript (6,726 fork)batch import
BugDomain: ParserHelp Wanted

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描述

Does this issue occur when all extensions are disabled?: Yes/No

  • VS Code Version: 1.86.2
  • OS Version: Windows 11

Steps to Reproduce:

  1. Add this code to a .js file:
let tree = {type: 'none'};
tree?.type = 'apple';
  1. This should be detected as a syntax error. Specifically "Uncaught SyntaxError: Invalid left-hand side in assignment". It is not.

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