Detect Typescript in Javascript editors opened and inform developer, that he is writing different syntax and it will silently fail (probably)

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难度
5/5
预计耗时
一周以上
新手友好度
30/100
Issue 类型
功能
描述清晰度
需要澄清
活跃度
停滞
技术栈
javascript, typescript
领域
developer-experience, tooling

调研方向

该 issue 未指定文件、测试或入口点。首先定位编辑器诊断或语言服务建议的实现位置，然后确定语法检测以及重命名、移除或忽略操作应如何接入；当所提议的警告能够针对列出的扩展名正常工作且不影响有效的 JavaScript 时，即视为完成。

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描述

Needs More Info

It would be super helpful to have something like:

Warning: TypeScript syntax detected in .jsx file. 
Would you like to:
[ ] Rename to .tsx
[ ] Remove TypeScript syntax
[ ] Ignore warning

This kind of UX improvement could save developers (especially those transitioning between JS and TS projects) a lot of time and frustration. It seems like a relatively straightforward detection that could help a lot of people!

VSCode already does similar helpful suggestions for other cases (like offering to create files that don't exist when you import them), so this would fit right in with that philosophy.

What it would solve?

It's the classic .jsx vs .tsx gotcha! 😄

This is such a common issue that even experienced developers run into it regularly. The file extension makes all the difference because:

  • .jsx files are treated as regular JavaScript/React files
  • .tsx files are treated as TypeScript/React files

So TypeScript typing just "silently fails" to work in .jsx files without any obvious error message about why the types aren't working.

It's one of those "spend an hour debugging only to realize it's a file extension" moments that every developer has experienced!

  • .CJS -> .TS, .JS -> .TS, .JSX -> .TSX

(Similar functionality could be created for CSS -> SCSS, ... .)

主要语言
Go
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