microsoft / microsoft/TypeScript
Unused catch error var not greyed out
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Domain: LS: Quick Fixes
In Discussion
Suggestion
- Dominant language
- Go
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Description
TS stable and nightly
playground
try {
} catch (foo) {}
try {
} catch (bar) {
bar;
}
Expected var foo to be greyed out
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked TypeScript Playground repro and trace how unused catch bindings are reported or highlighted. Verify the behavior for the two shown examples: foo should be greyed out because it is unused, while bar should not be.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100