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Intersection of
object and array breaks homomorphism
#61745
opened May 21, 2025 by
juhort
1 task done
TS looses track of enum coming from module declaration
Question
An issue which isn't directly actionable in code
#61744
opened May 21, 2025 by
ernestostifano
Intersection with a mapped type breaks bypassing private assignability.
#61743
opened May 21, 2025 by
miguel-leon
Design Meeting Notes, 5/21/2025
Design Notes
Notes from our design meetings
#61742
opened May 21, 2025 by
RyanCavanaugh
1 task done
private constructor(){}, It is necessary to also explicitly limit instantiation in the compiled js
Out of Scope
This idea sits outside of the TypeScript language design constraints
Suggestion
An idea for TypeScript
#61736
opened May 20, 2025 by
sunmoon-a11y
"'const' declarations can only be declared inside a block" should be issued more aggressively
Help Wanted
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Overriding type of union works as declared type but not as generic type
Design Limitation
Constraints of the existing architecture prevent this from being fixed
#61729
opened May 19, 2025 by
SimonSimCity
Poor quick info due to erroneously deferring A bug in TypeScript
Help Wanted
You can do this
keyof T since #51621
Bug
Mixing base class defeats circularity protection
Help Wanted
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Emitted declarations for JS file do not import a class if it's re-exported
Bug
A bug in TypeScript
Help Wanted
You can do this
tsc --build --watch produces stray .js/.js.map files when adding a file to upstream project
Bug
Double initializing a This means we'd like to hear from more people who would be helped by this feature
Suggestion
An idea for TypeScript
readonly field should not be allowed
Awaiting More Feedback
#61716
opened May 17, 2025 by
dgp1130
Function definition parameter type inference
Duplicate
An existing issue was already created
#61715
opened May 16, 2025 by
ccorcos
6 tasks done
using transform throws when a for body binding shadows the for head binding
Bug
Missing Intl.Locale.prototype.getWeekInfo()
Bug
A bug in TypeScript
Domain: lib.d.ts
The issue relates to the different libraries shipped with TypeScript
Help Wanted
You can do this
Add option to remove "move to new file" quick fix
Needs Investigation
This issue needs a team member to investigate its status.
Visual Studio
Integration with Visual Studio
#61712
opened May 16, 2025 by
markboyall
6 tasks done
Resolution order dependent circular heritage
Help Wanted
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Object.groupBy should not return Partial<Record<string, T>> or Partial<Record<number, T>>
Awaiting More Feedback
#61706
opened May 15, 2025 by
joshkel
TS Server Plugin rename supoort transform user input
Declined
The issue was declined as something which matches the TypeScript vision
Suggestion
An idea for TypeScript
#61702
opened May 15, 2025 by
mantou132
6 tasks done
Internal caching of Iterable types skips type checks for optional Arrays, only emits error on first encountered instance of TS error 2488
Bug
A bug in TypeScript
Help Wanted
You can do this
base64/hex methods missing from A bug in TypeScript
Domain: lib.d.ts
The issue relates to the different libraries shipped with TypeScript
Help Wanted
You can do this
Uint8Array
Bug
This JSX tag's 'children' prop expects type 'string' which requires multiple children, but only a single child was provided
Needs Investigation
This issue needs a team member to investigate its status.
The entries collection in observers should be non-empty
Experience Enhancement
Noncontroversial enhancements
Help Wanted
You can do this
Suggestion
An idea for TypeScript
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