Repository Issues
Microsoft/TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Issues
Open
Potentially-`undefined` value not flagged when destructuring union of empty tuple and array
BugDomain: check: Control FlowHelp Wanted
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments1 reaction0 assignees
Open
Allow tuple labels passed to `satisfies` to participate in type inference
Experience EnhancementHelp WantedSuggestion
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments4 reactions0 assignees
Open
'in' does not remove undefined from indexed value (with noUncheckedIndexedAccess)
Domain: check: Control FlowHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments0 reactions0 assignees
Open
Intersection for same key read-only property maybe wrong
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
Support `proposal-json-parse-with-source` (`JSON.rawJSON()`, `JSON.isRawJSON()`, `context` parameter of `reviver` function, etc...)
BugDomain: lib.d.tsHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments12 reactions0 assignees
Open
Suggestion: Support readonly interfaces in `getSuggestedLibFor...`
Domain: Error MessagesHelp 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
strange interaction with `resolveJsonModule`, `createRequire`, naming it `require`, and requiring JSON
BugDomain: Node ESMHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
JSDoc `@` in the code block is broken
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
Exhaustive switch case with returns can mark a finally block as unreachable
BugDomain: check: Control FlowHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments1 reaction0 assignees
Open
Mixins created from `obj.constructor` cannot have members
Domain: classesHelp 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
Conditional type flow types missing in the template in mapped types with as clause
Domain: Mapped 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
Closed
Path alias with trailing slash not resolving
BugDomain: Module ResolutionHelp Wanted
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
4 comments0 reactions1 assignee
Open
Unions seem to sidestep `--noUncheckedIndexedAccess` and lose the possibility of undefined
BugDomain: flag: noUncheckedIndexedAccessHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments3 reactions0 assignees
Open
Support source phase imports
CommittedHelp WantedSuggestion
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments7 reactions0 assignees
Open
Support type inference for Symbol keys on function
Domain: check: Type InferenceHelp 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
`IDBObjectStore` `keyPath` missing `null` type.
BugDomain: lib.d.tsHelp Wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Instantiable types from return types of contextual signatures don't provide contextual type information for return expressions
Domain: check: Contextual 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
Inconsistent enum literal types
Domain: enumHelp 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
Narrow object property indexed by bracket notation when the key is a known literal type, regardless of where the key comes from
Domain: check: Control FlowHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment11 reactions0 assignees
Open
Object.defineProperty(variable) does not error in `.js` files if `variable` does not exist
BugDomain: JavaScriptHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
9 comments2 reactions0 assignees