Open Issues Need Help
View All on GitHub Imports in .d.ts files break wildcard modules declarations 41 minutes ago
bug help wanted Domain: Related Error Spans
Wiki page 'Using the Language Service API' does not describe how to use the Language Service API 42 minutes ago
help wanted Docs
TS2367: This condition will always return 'false' since the types 'Constructor<T>' and 'typeof Child' have no overlap. 44 minutes ago
help wanted good first issue Suggestion Domain: Error Messages Experience Enhancement
Typescript ESType definition improvements about 1 hour ago
help wanted Suggestion Domain: lib.d.ts
Strange "Cannot use namespace 'Foo' as a type" error with dummy `declare module "foo";` declaration about 1 hour ago
bug help wanted Domain: Error Messages
help wanted Docs
Covariant assignability of type guard functions is unsound about 1 hour ago
help wanted Committed Suggestion
Wrong createElementNS() type definitions about 1 hour ago
bug help wanted Domain: lib.d.ts
Typescript Autocompletion Not Working For Function Overloads about 1 hour ago
help wanted Suggestion Experience Enhancement
Cannot Load Custom Definition File in Repository about 1 hour ago
help wanted good first issue Suggestion Domain: Error Messages
Improve error when parameter is missing a name about 1 hour ago
help wanted Suggestion Domain: Error Messages
Overriding generic method inconsistently errors about 1 hour ago
bug help wanted Domain: check: Variance Relationships
Intersection type of abstract classes does not throw error if same member exists in multiple abstract classes about 1 hour ago
bug help wanted Domain: Intersection
foo.ts is resolved before foo.d.ts even if the latter is in files[] about 1 hour ago
help wanted Committed Suggestion
help wanted Suggestion Effort: Moderate Domain: Error Messages
bug help wanted Domain: lib.d.ts
type.isLiteral() returns false for boolean literals about 1 hour ago
bug help wanted Domain: API Domain: Literal Types
Improve errors for potential arrow functions about 1 hour ago
bug help wanted Effort: Moderate Domain: Error Messages
Enums and interfaces do not have definitions in quick info/tooltips about 1 hour ago
help wanted Suggestion Experience Enhancement Domain: LS: Quick Info
bug help wanted Effort: Moderate Experience Enhancement Domain: JavaScript Rescheduled
API: incorrect declarations in types.ts about 1 hour ago
help wanted Breaking Change Infrastructure
Formatter should convert object literal to multiple lines / one line about 1 hour ago
help wanted Suggestion Domain: Formatter
getDefinitionAtPosition doesn't distinguish different kinds in a merged declaration about 1 hour ago
bug help wanted good first issue Domain: API
Services for non-homomorphic mapped type about 1 hour ago
help wanted Suggestion Experience Enhancement Domain: LS: Symbol Navigation Domain: Mapped Types
bug help wanted Domain: JSDoc
meta: factory function inconsistencies about 1 hour ago
bug help wanted Domain: API
Sort jsdoc parameter suggestions by argument position about 1 hour ago
help wanted good first issue Suggestion VS Code Tracked Domain: LS: Completion Lists
@typedef tags appearing in the next declaration quick info in VSCode about 1 hour ago
bug help wanted Domain: JSDoc
help wanted Suggestion Domain: Error Messages
simply logic predicate code fix or suggestion about 1 hour ago
help wanted Suggestion Domain: LS: Refactorings
Suggestion: case-sensitive imports about 1 hour ago
help wanted Suggestion Effort: Moderate
Missing error if ClassDeclaration is used in Statement position about 1 hour ago
bug help wanted Domain: Parser Effort: Casual
Enum keys not accepted as computed properties if their name is not a valid identifier about 1 hour ago
bug good first issue Domain: enum
Related error spans for derived members in interfaces/classes about 1 hour ago
help wanted Suggestion Experience Enhancement Domain: Related Error Spans
help wanted Suggestion
Verbose computed property transpilation about 1 hour ago
help wanted Suggestion Domain: API: Transforms
Compiler API: Expose More from typescript.d.ts about 1 hour ago
help wanted Suggestion Domain: API
Provide lib for modern DOM about 1 hour ago
help wanted Suggestion Domain: lib.d.ts Experience Enhancement
Formatter: Place JSX closing tag on new line about 1 hour ago
help wanted Suggestion Domain: Formatter
Better error for semicolon after decorator about 1 hour ago
help wanted Suggestion Domain: Error Messages
Typescript can't infer types when using Proxy about 1 hour ago
bug help wanted Domain: lib.d.ts
SourceFile.ambientModuleNames is undefined after transform() about 1 hour ago
bug help wanted Domain: API Domain: API: Transforms
help wanted Suggestion Domain: lib.d.ts Experience Enhancement
typeof Foo['bar'] has strange precedence about 1 hour ago
help wanted Suggestion Experimentation Needed Effort: Moderate Revisit
Fix setTimeout/setInterval/setImmediate functions about 1 hour ago
bug help wanted Domain: lib.d.ts
Create Annex B lib target about 2 hours ago
help wanted Committed Suggestion Effort: Moderate
[typescript] dom definitions not up to date about 2 hours ago
bug help wanted VS Code Tracked Domain: lib.d.ts Effort: Casual
Add WebVR API to lib.d.ts about 2 hours ago
help wanted Suggestion Domain: lib.d.ts Revisit
Dangerous "name" (and potentially others) global about 2 hours ago
help wanted good first issue Committed Suggestion Domain: lib.d.ts
Surprising `Not all code paths return a value` about 2 hours ago
help wanted Suggestion
help wanted Committed Suggestion
Suggestion: Change `Diagnostic.file` to be `SourceFileLike` instead of `SourceFile`. about 2 hours ago
help wanted Suggestion Domain: API
Feedback to improve compileOnSave with tsserver. about 2 hours ago
help wanted Suggestion VS Code Tracked Domain: API
Mixed es5/es2015 code with mixin classes causes runtime errors about 2 hours ago
help wanted Awaiting More Feedback Suggestion Effort: Moderate
Noncrashing property access through non-null assertion operator should narrow that property to NonNullable about 2 hours ago
bug help wanted Domain: check: Control Flow
Flag boolean in comparison operator operands as errors about 2 hours ago
help wanted good first issue Suggestion
Suggestion: a built-in TypedArray interface about 2 hours ago
help wanted Suggestion Fix Available Domain: lib.d.ts
Control application of insertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets for Array Literal vs Array Access Expression about 2 hours ago
help wanted Suggestion VS Code Tracked Domain: Formatter
Unable to access ServiceWorkerGlobalScope via `self.` about 2 hours ago
bug help wanted Domain: lib.d.ts
Improve feedback for abstract class instantiation error messages about 2 hours ago
help wanted Suggestion Effort: Moderate Experience Enhancement
JSDoc comment nodes are not traversed and their parents are sent even if they should not about 2 hours ago
bug help wanted Domain: API Domain: JSDoc
Dom d.ts does not define event.target.parentNode about 2 hours ago
bug help wanted VS Code Tracked Domain: lib.d.ts
Suggestion: tsc should display a one line summary about 2 hours ago
help wanted Suggestion
Doc comment applied to all components of dotted namespace declaration about 2 hours ago
bug help wanted Domain: JSDoc
help wanted Suggestion Domain: API Experience Enhancement
help wanted Docs
Type Inference in for... in combined with typeof about 2 hours ago
help wanted Suggestion
How tsconfig exclude pattern should actually work about 2 hours ago
help wanted Suggestion
Support @class in JSDoc about 2 hours ago
help wanted Suggestion VS Code Tracked Domain: JSDoc Domain: JavaScript Has Repro
Provide Format Options for JSX/TSX End of Tag Placement about 2 hours ago
help wanted Suggestion VS Code Tracked Domain: Formatter
help wanted Suggestion
Treating `undefined` parameters as optional about 2 hours ago
help wanted Committed Suggestion
JSDoc support for destructured parameters about 2 hours ago
help wanted Suggestion VS Code Tracked In Discussion Domain: JSDoc
Service Worker typings about 2 hours ago
help wanted Suggestion Domain: lib.d.ts
Unoptimized destructuring compilation about 2 hours ago
help wanted Suggestion
help wanted Suggestion Effort: Moderate Domain: Error Messages
Go-to-Implementation & class names about 2 hours ago
help wanted Suggestion Domain: API
Support formatting JSDoc comments about 2 hours ago
help wanted Suggestion VS Code Tracked Domain: JSDoc
Move away from Classic module resolution as default for all module kinds about 2 hours ago
help wanted Committed Suggestion Effort: Moderate
Line break in module declaration causes compile time error about 2 hours ago
bug help wanted Domain: Parser
Array inheritance in ES6 declaration file (lib.es6.d.ts) about 2 hours ago
help wanted Suggestion Domain: lib.d.ts
Strange boolean-discriminant narrowing with strictNullChecks off about 2 hours ago
bug help wanted Effort: Moderate Domain: check: Control Flow
help wanted Suggestion Experience Enhancement
Give a better error message when an import isn't found but a namespace of the same name exists about 2 hours ago
bug help wanted Effort: Moderate Domain: Error Messages
Comments on inner properties are stripped about 2 hours ago
help wanted Suggestion
Scope of this is lost when passing a member function to setInterval about 2 hours ago
help wanted good first issue Suggestion Domain: lib.d.ts
Error message for invalid string literal type could be improved about 2 hours ago
help wanted Suggestion Effort: Moderate Domain: Error Messages Experience Enhancement
Formatter fails to format uglified files about 2 hours ago
help wanted Suggestion VS Code Tracked Domain: Formatter
Suggestion: output fewer errors for incorrectly implemented interface about 2 hours ago
help wanted Suggestion Effort: Difficult
Private/protected properties on siblings in union types about 2 hours ago
help wanted Suggestion Domain: Error Messages
Sourcemap - names array empty for all files about 2 hours ago
help wanted Suggestion Experience Enhancement
Public APIs not normalizing paths about 2 hours ago
bug help wanted Domain: API
help wanted Suggestion Domain: Formatter
Triple slash reference should include extension '.d.ts' or not? about 2 hours ago
bug help wanted VS Code Tracked Domain: Module Resolution
Find all references for ambient module about 2 hours ago
help wanted Suggestion Domain: API
DefinitionResponse selects full type range about 2 hours ago
help wanted Suggestion Domain: API
help wanted Breaking Change Suggestion Effort: Moderate
Type Merging between extends and intersection about 2 hours ago
help wanted Suggestion Effort: Moderate
Do not rename imports from ambient modules about 2 hours ago
help wanted Suggestion Effort: Moderate
Preselect completion list entries based on contextual type about 2 hours ago
help wanted Suggestion Domain: API