Repository Issues
Microsoft/TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Issues
Open
Narrowed `const` variables are widened in block-scoped closures
Domain: check: Control FlowHelp WantedPossible Improvement
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments1 reaction0 assignees
Open
JavaScript Intellisense doesn't detect types of properties defined in async constructors
Domain: JavaScriptHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments1 reaction0 assignees
Open
Index type distributes over intersections too eagerly
Domain: Indexed Access TypesHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Add more context to unique symbols that appear in type errors
Domain: Error MessagesHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
6 comments0 reactions0 assignees
Open
Type Inference Enhancement of Handler Args
Domain: check: Type InferenceHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
Branded literal type widened in unexpected way
BugDomain: IntersectionHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Index type for an intersected `NoInfer` can get sometimes incorrectly deferred
Domain: Index TypesHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
JSDOC generics bug for callbacks when args are present
BugDomain: JSDocHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments1 reaction0 assignees
Open
[TypeScript] Mapped Types with Template Literal Keys Do Not Preserve Type Declaration References
Domain: LS: Signature HelpExperience EnhancementHelp WantedSuggestion
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment1 reaction0 assignees
Open
Distributive conditional types can't distribute over `NoInfer` types wrapping a union
Domain: Conditional TypesHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Text between Unicode escapes within an identifier is skipped
BugDomain: ParserHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
rewriteRelativeImportExtensions: tsc doesn't rewrite extensions in emitted declaration files
Experience EnhancementHelp WantedSuggestion
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
9 comments3 reactions0 assignees
Open
Static method on abstract class with generic this parameter causes "excessively deep" error when called on concrete class
Domain: check: Type CircularityHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Branded string literals revert to `string` in some cases
Domain: Literal TypesHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment3 reactions0 assignees
Open
JSDoc recursive inference not working properly on generic array wrapping
Domain: JSDocHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
The `parseJsonConfigFileContent` function does not resolve relative JSON paths
BugDomain: APIHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Unexpected "'Type' is declared but its value is never read." error with jsdoc @import syntax
BugDomain: JSDocFix AvailableHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
7 comments5 reactions0 assignees
Open
Type parameter not usable as type argument in identical type; union in constraint becomes intersection
BugDomain: Indexed Access TypesHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
misleading error message on invalid assignment when one type parameter extends another
Domain: Error MessagesHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
static block on unnamed class produces invalid javascript
BugDomain: JS EmitHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments1 reaction0 assignees