microsoft/TypeScript

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

Stars: 111k
Forks: 14.3k
Open beginner issues: 18
Indexed issues: 4.9k
Avg merge: 2d 4h
Merged PRs (30d): 132

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

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4857 open issues indexed

Suggestion: Generate doc comments in emitted JS Open

Needs Proposal Suggestion VS Code Tracked

microsoft/TypeScript#10 · 61 comments · 111 reactions · 0 assignees · Indexed Sep 19, 2026
Support some non-structural (nominal) type matching Open

In Discussion Suggestion

microsoft/TypeScript#202 · 498 comments · 1087 reactions · 0 assignees · Indexed Sep 19, 2026
Don't widen return types of function expressions Open

Experimentation Needed Suggestion

microsoft/TypeScript#241 · 35 comments · 106 reactions · 0 assignees · Indexed Sep 19, 2026
External interfaces included in IDE symbol space Open

Domain: API Help Wanted Suggestion

microsoft/TypeScript#243 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 19, 2026
cloneNode should return sub type, not Node Open

Bug Domain: lib.d.ts Help Wanted

microsoft/TypeScript#283 · 25 comments · 64 reactions · 0 assignees · Indexed Sep 19, 2026
Request to change currentTarget in Event interface for lib.d.ts Open

Domain: lib.d.ts Help Wanted Suggestion

microsoft/TypeScript#299 · 39 comments · 89 reactions · 0 assignees · Indexed Sep 19, 2026
Consider adding a module level visibility modifier. Open

Needs Proposal Suggestion

microsoft/TypeScript#321 · 25 comments · 116 reactions · 0 assignees · Indexed Sep 19, 2026
Suggestion: Units of measure Open

Needs Proposal Suggestion

microsoft/TypeScript#364 · 59 comments · 105 reactions · 0 assignees · Indexed Sep 19, 2026
JSDoc for methods with multiple signatures Open

Awaiting More Feedback Domain: JSDoc Suggestion

microsoft/TypeScript#407 · 26 comments · 33 reactions · 0 assignees · Indexed Sep 19, 2026
Allow a module to implement an interface Open

Help Wanted Suggestion

microsoft/TypeScript#420 · 66 comments · 115 reactions · 0 assignees · Indexed Sep 19, 2026
Support conditional compilation Open

Needs More Info Suggestion

microsoft/TypeScript#449 · 98 comments · 120 reactions · 0 assignees · Indexed Sep 19, 2026
Convert HTMLElement and friends to classes to support Web Components/Custom elements Open

Domain: lib.d.ts In Discussion Suggestion

microsoft/TypeScript#574 · 33 comments · 3 reactions · 0 assignees · Indexed Sep 19, 2026
Don't allow falsely discarded parameters when determining overloaded signature compatibility Open

Help Wanted Suggestion

microsoft/TypeScript#598 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Refactoring support: Reorder parameters Open

Domain: LS: Refactorings Suggestion Visual Studio

microsoft/TypeScript#662 · 9 comments · 63 reactions · 0 assignees · Indexed Sep 19, 2026
External modules with AMD always requires "exports" even when it is not used Open

Help Wanted Suggestion

microsoft/TypeScript#669 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 19, 2026
Gracefully handle template literal properties in the parser Open

Domain: Error Messages Effort: Moderate Experience Enhancement Help Wanted

microsoft/TypeScript#1057 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 19, 2026
No way to type an object with null prototype Open

Needs Proposal Suggestion

microsoft/TypeScript#1108 · 24 comments · 42 reactions · 0 assignees · Indexed Sep 19, 2026
Allow classes to be parametric in other parametric classes Open

Help Wanted Suggestion

microsoft/TypeScript#1213 · 187 comments · 1382 reactions · 0 assignees · Indexed Sep 19, 2026
Consider property access a form of type guards Open

Awaiting More Feedback Suggestion

microsoft/TypeScript#1260 · 18 comments · 89 reactions · 0 assignees · Indexed Sep 19, 2026
Add "sealed" key word to mark some public/protected methods not be overriden Open

Needs Proposal Suggestion

microsoft/TypeScript#1534 · 2 comments · 96 reactions · 0 assignees · Indexed Sep 19, 2026
QuickInfo shows icon and name of item type Open

Domain: API Help Wanted Suggestion

microsoft/TypeScript#1631 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Report error if code precedes /// reference Open

Bug Domain: Something Else Help Wanted

microsoft/TypeScript#1920 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Support column limit in formatter Open

Help Wanted Suggestion

microsoft/TypeScript#1988 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Formatter: allow continuation indent different from nested indent Open

Help Wanted Suggestion

microsoft/TypeScript#1991 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Support for tabs in language service formatter. Open

Domain: API Help Wanted Suggestion

microsoft/TypeScript#2306 · 10 comments · 8 reactions · 0 assignees · Indexed Sep 19, 2026
Allow wrapped values to be used in place of primitives. Open

Needs Proposal Suggestion

microsoft/TypeScript#2361 · 43 comments · 106 reactions · 0 assignees · Indexed Sep 19, 2026
Suggestion: allow instantiation of type aliases Open

Needs Proposal Suggestion

microsoft/TypeScript#2559 · 11 comments · 30 reactions · 0 assignees · Indexed Sep 19, 2026
Generic decorators - could they receive some default type arguments? Open

Domain: Decorators In Discussion Suggestion

microsoft/TypeScript#2607 · 18 comments · 54 reactions · 0 assignees · Indexed Sep 19, 2026
Flow type helpers Open

Needs Proposal Suggestion

microsoft/TypeScript#2710 · 11 comments · 7 reactions · 0 assignees · Indexed Sep 19, 2026
TSServer: 'quickInfo' request should return symbol display parts as completion does Open

Effort: Moderate Help Wanted Suggestion VS Code Tracked

microsoft/TypeScript#2850 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Port from old compiler code to emit compilation flags into the source map Open

Help Wanted Suggestion

microsoft/TypeScript#2858 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Add Support for design-time decorators Open

In Discussion Suggestion

microsoft/TypeScript#2900 · 52 comments · 148 reactions · 0 assignees · Indexed Sep 19, 2026
Suggestion: Reopen static and instance side of classes Open

In Discussion Suggestion

microsoft/TypeScript#2957 · 16 comments · 30 reactions · 0 assignees · Indexed Sep 19, 2026
Compile / edit time pluggable analyzers like C# Open

Needs Proposal Suggestion

microsoft/TypeScript#3003 · 16 comments · 10 reactions · 0 assignees · Indexed Sep 19, 2026
Rationalize our presentation and handling of merged/alias symbols in the IDE. Open

Domain: API Domain: LS: Quick Info Help Wanted Suggestion

microsoft/TypeScript#3025 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Feature Request: F# style Type Provider support? Open

Needs Proposal Suggestion

microsoft/TypeScript#3136 · 33 comments · 219 reactions · 0 assignees · Indexed Sep 19, 2026
Feature request: Decorators on enum members Open

Domain: Decorators Needs Proposal Suggestion

microsoft/TypeScript#3279 · 30 comments · 68 reactions · 0 assignees · Indexed Sep 19, 2026
Provide an xclangspec file for TypeScript syntax highlighting in Xcode Open

Help Wanted Suggestion

microsoft/TypeScript#3404 · 7 comments · 6 reactions · 0 assignees · Indexed Sep 19, 2026
Explicit any type in for..in loop Open

Awaiting More Feedback Suggestion

microsoft/TypeScript#3500 · 48 comments · 34 reactions · 0 assignees · Indexed Sep 19, 2026
Intellisense behaviour of functions and parameters Open

Experience Enhancement Help Wanted Suggestion VS Code Tracked

microsoft/TypeScript#3520 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Bug with resolveClassOrInterfaceMembers Open

Help Wanted Suggestion

microsoft/TypeScript#3539 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Cannot 'export default' abstract, ambient class or interface Open

Help Wanted Suggestion

microsoft/TypeScript#3792 · 18 comments · 34 reactions · 0 assignees · Indexed Sep 19, 2026
T.constructor should be of type T Open

In Discussion Suggestion

microsoft/TypeScript#3841 · 103 comments · 291 reactions · 0 assignees · Indexed Sep 19, 2026
Variable merging Open

Needs Proposal Suggestion

microsoft/TypeScript#4062 · 9 comments · 4 reactions · 0 assignees · Indexed Sep 19, 2026
Some SVG types would benefit from stricter appendChild() overloads Open

Domain: lib.d.ts Help Wanted Suggestion

microsoft/TypeScript#4178 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Negated types Open

In Discussion Suggestion

microsoft/TypeScript#4196 · 67 comments · 177 reactions · 0 assignees · Indexed Sep 19, 2026
Getting completions when writing out a dot in a parameter should suggest the splat operator Open

Help Wanted Suggestion

microsoft/TypeScript#4262 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Consider exporting 'getOwnEmitOutputFilePath' Open

Domain: API Help Wanted Suggestion

microsoft/TypeScript#4320 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 19, 2026
Re-exporting namespace declarations in ES6 ambient declaration Open

In Discussion Suggestion

microsoft/TypeScript#4336 · 10 comments · 24 reactions · 0 assignees · Indexed Sep 19, 2026
Provide suggested fixes for unresolved entities Open

Help Wanted Suggestion

microsoft/TypeScript#4370 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 19, 2026

microsoft/TypeScript

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