microsoft / microsoft/TypeScript

Fix/fix all to remove TS-specific constructs in JS files

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#40,599 3 comments 1 reaction 0 assignees View on GitHub

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Domain: LS: Quick Fixes Effort: Moderate Help Wanted Needs Proposal Suggestion
Dominant language
Go
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Avg merge
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Merged PRs (30d)
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Description

Today in a JS file, if you write something like

function foo(x: string) {

}
Type annotations can only be used in TypeScript files.

We should provide a quick fix for these

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files or tests. Start by locating the diagnostic and quick-fix path for “Type annotations can only be used in TypeScript files,” then determine which TypeScript-specific constructs and fix-all coverage are in scope. Done means the relevant JavaScript diagnostics offer both a quick fix and fix-all.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, typescript
Domain
compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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