Repository Issues
Microsoft/TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Issues
Open
Function parameters are not inferable when defined via JSDoc using @type tag (with strict)
Domain: JSDocHelp WantedPossible Improvement
No assignee yetHas a beginner-friendly labelContributing guide available
5 comments0 reactions0 assignees
Open
Allow leading underscore for types to bypass noUnusedLocals warning
Help WantedSuggestion
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
6 comments16 reactions0 assignees
Open
duplicate comments on decorated fields
BugDomain: Comment EmitHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Error: Debug Failure when importing `AssertionError` from `node:assert/strict`
BugDomain: Node ESMHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
8 comments9 reactions0 assignees
Open
Narrowing by type predicate fails to produce intersection type with weak type
BugDomain: check: Control FlowHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Discriminated union with an optional discriminator is not being resolved as expected
Domain: check: Type InferenceExperimentation NeededHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments1 reaction0 assignees
Open
Type printing does not detect that a name is shadowed in the current scope
BugDomain: Declaration EmitHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Check for missing property on union type causes failure in subsequent property checks
Domain: check: Control FlowHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
17 comments0 reactions0 assignees
Open
Error in Index Signature Assignment
BugDomain: check: Excess Property CheckingHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments2 reactions0 assignees
Open
type inference issue with dynamic template literals
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 comments1 reaction0 assignees
Open
[ID] `--isolatedDeclarations` disallows `const` initialized with a regex literal
BugDomain: flag: isolatedDeclarationsHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
5 comments0 reactions0 assignees
Open
Strange runtime caching bug involving `as const` and `const T` generic
Domain: check: Error InstabilityHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
Error when accessing properties on `globalThis` with the same name of a global variable
BugDomain: Something ElseHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
5 comments1 reaction0 assignees
Open
Elementwise elaboration fails to be found for properties mixed with incompatible index signatures using intersections
Domain: IntersectionHelp 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
`--isolatedDeclarations` allows generator functions
BugDomain: flag: isolatedDeclarationsHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
Auto-closing of tags within curly braces `{}` does not work when parent element is same tag in JSX
BugDomain: JSX/TSXHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
TypeScript language service cannot find subclass references/implementation of mixin methods
Experience EnhancementHelp WantedSuggestion
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Type inference lost after spreading array with `ArrayLike`
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 comments1 reaction0 assignees
Open
TS2590: Expression produces a union type that is too complex to represent, with simple file using Tuples
Domain: check: Big UnionsHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
7 comments0 reactions0 assignees
Open
`satisfies` does not work on a variable called `type`
BugDomain: ParserHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments1 reaction0 assignees