Repository Issues

Microsoft/TypeScript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

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Stars
 (108,860 stars)
Forks
 (13,395 forks)
Indexed issues
 (926 indexed issues)
open beginner issues
 (903 open beginner issues)
Latest indexed
Aug 21, 2026
Last GitHub push
May 8, 2026
License
Apache License 2.0
Contributing guide
Contributing guide
Code of conduct
Code of conduct
Dominant language
TypeScript
PR merge metrics
 (PR metrics pending)
Beginner labels
help wantedgood first issue

Issues

903 open indexed issues

Open
C extends A but C does not extend A | B
Domain: check: Variance RelationshipsHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

Microsoft / TypeScript · #59034 · Jun 26, 2024 · TypeScript · 108,860 stars

3 comments0 reactions0 assignees
Open
Inverted union type narrowing was broken in 4.9
BugDomain: check: Control FlowHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

Microsoft / TypeScript · #58861 · Jun 14, 2024 · TypeScript · 108,860 stars

2 comments0 reactions0 assignees
Open
Template Literal Type JSX children prop issue
Domain: JSX/TSXHelp WantedPossible Improvement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

Microsoft / TypeScript · #58799 · Jun 7, 2024 · TypeScript · 108,860 stars

3 comments1 reaction0 assignees
Open
False positive ts(2373)
Domain: BinderHelp WantedPossible Improvement
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

Microsoft / TypeScript · #58794 · Jun 7, 2024 · TypeScript · 108,860 stars

0 comments0 reactions0 assignees
Open
`for (const x in #b)` is allowed
BugDomain: ParserHelp Wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

Microsoft / TypeScript · #58754 · Jun 3, 2024 · TypeScript · 108,860 stars

1 comment1 reaction0 assignees