Top TypeScript issues

“Type instantiation is excessively deep and possibly infinite” but only in a large codebase

Bug Big Unions Rescheduled
karol-majewski picture karol-majewski·6 Nov 2019·26 Comments
👍36 👀1

Rest elements in generic tuple

Fix Available In Discussion Suggestion
vmit picture vmit·1 Aug 2018·6 Comments
👍54

Mapped conditional types

Fixed Suggestion
matt-hensley picture matt-hensley·21 Nov 2016·62 Comments
👍146 ❤42

Skip typechecking; only emit (support `--transpileOnly` in `tsc`, re-open of #4176)

Awaiting More Feedback Suggestion
dtinth picture dtinth·30 Jan 2019·19 Comments
👍67 ❤9

Issue a custom error message when trying to assign constraint type to generic type parameter

Error Messages Experience Enhancement Suggestion good first issue help wanted
RyanCavanaugh picture RyanCavanaugh·15 Dec 2018·25 Comments
👍24

error TS2677: Type 'keyof E' is not assignable to type 'string'

Breaking Change
AnyhowStep picture AnyhowStep·27 Apr 2018·4 Comments
👍2

Add a new type Required

Fixed Suggestion
monolithed picture monolithed·5 Apr 2017·35 Comments
👍17

"'Promise' is undefined" error in IE11 even though targeting ES5

Question
devuxer picture devuxer·25 Feb 2017·18 Comments
👍5

Strict null checks for Map members

Needs Proposal Suggestion
sanex3339 picture sanex3339·11 Jul 2016·21 Comments
👍58

Missing escape/unescape ?

Bug lib.d.ts help wanted
John0King picture John0King·17 May 2016·14 Comments
👍4
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