microsoft/TypeScript

Support source phase imports about 16 hours ago

Suggestion Help Wanted Committed

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Suggestion: a built-in TypedArray interface 1 day ago

Suggestion Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

'Omit' should alias a distinct mapped type (for display purposes) 1 day ago

Suggestion Help Wanted Effort: Moderate Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Document --incremental and composite project APIs 1 day ago

Help Wanted Domain: API Docs

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Specialize JSX error messages for missing properties 1 day ago

Help Wanted Effort: Moderate Domain: JSX/TSX Domain: Error Messages Experience Enhancement Rescheduled

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Update `TypedArray` constructors to disallow invalid `(typedArray, byteOffset, byteLength)` 1 day ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Inlay hints look awkward for callback parameters with a single parameter 1 day ago

Suggestion Help Wanted Experience Enhancement Rescheduled Domain: LS: Inlay Hints

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Inverted `Promise` should warn like it does without inverting 1 day ago

Suggestion Help Wanted Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Enum value `1 / 0` incorrectly transformed if there is `Infinity` declared in scope 1 day ago

Bug Help Wanted Domain: enum

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Indexing/element access on `super` avoids instance property checks 1 day ago

Bug Help Wanted Rescheduled Effort: Casual Domain: classes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crashes on transform and parse (from assertion/debug failures) 1 day ago

Bug Help Wanted Domain: API: Transforms Crash Effort: Casual

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Unexpected "'Type' is declared but its value is never read." error with jsdoc @import syntax 1 day ago

Bug Help Wanted Domain: JSDoc

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Intellisense: deprioritise native function methods 1 day ago

Suggestion Help Wanted Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Add types for `String.{matchAll,replaceAll}` with a well known symbol 1 day ago

Help Wanted Domain: lib.d.ts Possible Improvement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Error: Debug Failure. No error for last overload signature 1 day ago

Bug Help Wanted Domain: check: Variance Relationships

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`using` transform throws when a for body binding shadows the for head binding 1 day ago

Bug Help Wanted Domain: API: Transforms

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Namespaces: use before declaration is not reported 1 day ago

Bug Help Wanted Domain: check: Control Flow

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Incorrect type declarations for a constant inside a namespace merged with an enum 1 day ago

Bug Help Wanted Domain: Declaration Emit

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Diagnostic code `69010` may be typo of `6910`? 1 day ago

Bug Help Wanted Domain: Error Messages

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

JSDoc `@import` causes `getCompletionEntryDetails` to crash 1 day ago

Bug Help Wanted Domain: JSDoc

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

"await x as any" - Node PartiallyEmittedExpression did not pass test 'isLeftHandSideExpression' assert triggered 1 day ago

Bug Help Wanted Domain: API: Transforms

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

[isolatedDeclarations] function expressions as an argument to a function call that is exported are reported as needing an annotation 1 day ago

Help Wanted Possible Improvement Domain: flag: isolatedDeclarations

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

JSX Fragments are in-properly typed with `<></>` syntax, when using `react-jsx` JSX option 1 day ago

Bug Help Wanted Domain: JSX/TSX

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Using declarations like a statement leads to strange bugs. 1 day ago

Bug Help Wanted Domain: check: Control Flow

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crash: RangeError: Maximum call stack size exceeded in addTypesToUnion when using incomplete keyof type annotation on object destructuring 1 day ago

Bug Help Wanted Domain: Crashes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Double error message when referencing variable of type union of string literals from ambient declaration 1 day ago

Help Wanted Domain: Error Messages Possible Improvement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Corsa differences in `export=` module augmentation 2 days ago

Help Wanted

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crash: RangeError: Maximum call stack size exceeded in isReachableFlowNodeWorker with complex for loop headers 4 days ago

Bug Help Wanted Domain: check: Control Flow

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`importHelpers` incorrectly requires `tslib` for native `#private` class members at every dated `target` (ES2022–ES2025), even though no helper is ever emitted 5 days ago

Bug Help Wanted Domain: tslib and Helper Functions

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

'declare method' quick fix for adding a private method 7 days ago

Suggestion Help Wanted Good First Issue

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS1518 depends on operand order in negated v-mode class unions 11 days ago

Bug Help Wanted Domain: Parser

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Type narrowing not working correctly with Uppercase<string> & Lowercase<string> 11 days ago

Bug Help Wanted Domain: check: Control Flow

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

ES2025 regex syntax (duplicate named groups, pattern modifiers) is not gated by `target` 11 days ago

Bug Help Wanted Domain: Parser

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Should not allow `import.defer?.('x')` 11 days ago

Bug Help Wanted Domain: Parser

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`Array.prototype.at` docs use "code unit" instead of "item" 12 days ago

Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Add type definition for Math.sumPrecise (ES2025 / TC39 proposal) 12 days ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

False positive on destructured `require` is `verbatimModuleSyntax` and `module` is `preserve` 15 days ago

Bug Help Wanted Domain: ES Modules

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Certain conditional types allow unsound assignments 20 days ago

Bug Help Wanted Domain: Conditional Types Cursed?

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Intellisense keeps crashing 22 days ago

Bug Help Wanted Domain: LS: TSServer

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Incorrect inference/autocompletion on generic arrays, when values can be inferred from a defined object. 23 days ago

Suggestion Help Wanted Effort: Moderate Domain: LS: Completion Lists Experience Enhancement Experimentation Needed

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

JSDoc for properties of intersected types is no longer merged about 1 month ago

Bug Help Wanted Domain: LS: Quick Info

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS2742 “The inferred type of 'default' cannot be named” with ESLint `defineConfig` about 2 months ago

Help Wanted Domain: Declaration Emit Possible Improvement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Missing error about inability to access conflicting private properties on generic types involving intersections 2 months ago

Bug Help Wanted Domain: Indexed Access Types

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crash: RangeError: Maximum call stack size exceeded during type serialization of recursive distributive mapped types 2 months ago

Bug Help Wanted Domain: check: Type Circularity

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Generic type inference failed 2 months ago

Bug Help Wanted Domain: check: Type Inference

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Markdown heading level bug in Narrowing documentation 3 months ago

Help Wanted Docs

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS1508: Unexpected '?'. Did you mean to escape it with backslash? shouldn't report even with `v` flag 3 months ago

Bug Help Wanted Domain: Parser

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`ReadonlySet` lacks documentation for `has`, `forEach` and `size` 3 months ago

Help Wanted Domain: lib.d.ts Possible Improvement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

DOM: `Element#matches()` incorrectly narrows types 3 months ago

Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Discriminated union parameter destructuring doesn't work if the fields have defaults 3 months ago

Bug Help Wanted Domain: check: Control Flow

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Conditional type eagerly calculated to be invariant breaks referential transparency 3 months ago

Bug Help Wanted Domain: check: Variance Relationships Cursed?

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`Set#size` has grammar typo in `lib.es2015.collection.d.ts` 3 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Service Worker typings 3 months ago

Suggestion Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`silentNeverType` leak in contextual parameter types coming from anonymous non-aliased object type instantiations 3 months ago

Bug Help Wanted Domain: check: Type Inference

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

getLeadingCommentRanges misses comment in call expression 3 months ago

Help Wanted Possible Improvement Domain: Parser

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`tsc --build --watch` produces stray `.js`/`.js.map` files when adding a file to upstream project 4 months ago

Bug Help Wanted Domain: tsc -b

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Enum keys not accepted as computed properties if their name is not a valid identifier 4 months ago

Bug Good First Issue Domain: enum

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS:1379 An import alias cannot reference a declaration that was exported using 'export type' 4 months ago

Bug Help Wanted Domain: ES Modules

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Show incompatible union members in discriminated union discriminator errors 4 months ago

Suggestion Help Wanted Experimentation Needed

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Confusing error message for labels used before definition 4 months ago

Suggestion Help Wanted Good First Issue Effort: Moderate Domain: Error Messages Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS is overly picky when declaring a class constructor type 4 months ago

Bug Help Wanted Good First Issue Domain: classes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

rewriteRelativeImportExtensions: tsc doesn't rewrite extensions in emitted declaration files 4 months ago

Suggestion Help Wanted Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Confusing error message (2322), should use (2741) and (2322) error message when this["XXX"] = {...} has a missing (or mispelled) key or an incompatible value. 4 months ago

Bug Help Wanted Domain: Error Messages

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Love for TypeScript 5 months ago

By Design Suggestion Needs Proposal Help Wanted Committed Canonical Effort: Difficult Working as Intended Awaiting More Feedback

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Sort jsdoc parameter suggestions by argument position 5 months ago

Suggestion Help Wanted Good First Issue Domain: LS: Completion Lists VS Code Tracked

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

getDefinitionAtPosition doesn't distinguish different kinds in a merged declaration 5 months ago

Bug Help Wanted Domain: API Good First Issue

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Cannot Load Custom Definition File in Repository 5 months ago

Suggestion Help Wanted Good First Issue Domain: Error Messages

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS2367: This condition will always return 'false' since the types 'Constructor<T>' and 'typeof Child' have no overlap. 5 months ago

Suggestion Help Wanted Good First Issue Domain: Error Messages Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

wiki doc: @template reference re: jsdoc (and old usejsdoc.org reference) 5 months ago

Help Wanted Docs

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Show type info of yield 5 months ago

Needs Proposal Help Wanted Effort: Moderate Domain: LS: Quick Info Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

JSDocTag width is inconsistent 5 months ago

Bug Help Wanted Effort: Moderate Domain: JSDoc

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Add diff chunk header lines to Git 5 months ago

Suggestion Help Wanted Community Tooling Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

@description JSDoc tag interferes with callback parameter documentation 5 months ago

Bug Help Wanted Domain: JSDoc checkJs

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Parsing issue for call expression with type arguments following left-shift 5 months ago

Bug Help Wanted Domain: Parser

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Cannot assign to ... because it is a read-only property when using type guard in ctor 5 months ago

Bug Help Wanted Domain: classes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

HTMLFormControlsCollection namedItem should return only form input elements 5 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

MediaTrackConstraintsSet misses torch 5 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Support either type asserting `self` in classes, or properly ignoring workaround 5 months ago

Bug Help Wanted Domain: classes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`asserts` keyword does not enhance hoisted function type, works on functions assigned to a variable 5 months ago

Bug Help Wanted Domain: check: Control Flow

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`lib.dom.d.ts`: Keyframe interface should allow CSS Typed Object Model objects like CSSTransformValue, etc 5 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

cloneNode should return sub type, not Node 5 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

JSDoc implements with imported types 5 months ago

Bug Help Wanted Domain: Declaration Emit

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Declaration emit of private properties should strip jsdoc 5 months ago

Bug Help Wanted Domain: Declaration Emit

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Allow classes to be parametric in other parametric classes 5 months ago

Suggestion Help Wanted

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Scope of this is lost when passing a member function to setInterval 5 months ago

Suggestion Help Wanted Domain: lib.d.ts Good First Issue

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Object.defineProperty(variable) does not error in `.js` files if `variable` does not exist 5 months ago

Bug Help Wanted Domain: JavaScript

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

TS4055 when generating declaration for return type that uses type of paramter for protected methods 6 months ago

Bug Help Wanted Domain: Declaration Emit

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Type Guard Documentation Is Incorrectly Labeled as Deprecated 6 months ago

Help Wanted Docs

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crash: Maximum call stack size exceeded when declare const enum has a computed property named [object] followed by an object member 6 months ago

Bug Help Wanted Domain: Crashes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crash: Debug Failure. False expression in getArgumentArityError when resolving overloaded decorators with --experimentalDecorators 6 months ago

Bug Help Wanted Domain: Decorators

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Array inheritance in ES6 declaration file (lib.es6.d.ts) 6 months ago

Suggestion Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Support `proposal-json-parse-with-source` (`JSON.rawJSON()`, `JSON.isRawJSON()`, `context` parameter of `reviver` function, etc...) 6 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Missing IntelliSense suggestions in a partial mapped generic argument 6 months ago

Suggestion Help Wanted Domain: LS: Completion Lists Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

JSDoc comments for async_hooks are confusing/misleading 6 months ago

Suggestion Help Wanted Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

[Rename symbol command] Remove unnecessary named import 7 months ago

Suggestion Help Wanted Experience Enhancement Effort: Casual

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Regression: Generic function returning union of tuples is not assignable to identical type since v4.2 7 months ago

Help Wanted Domain: check: Type Inference Possible Improvement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

`@` character in code block renders poorly in tooltip 7 months ago

Bug Help Wanted Domain: JSDoc

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Suggestion: Formatting: Disable inserting spaces around leading semicolon 7 months ago

Suggestion Help Wanted Domain: Formatter Experience Enhancement

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Add ES2025 target and library 7 months ago

Bug Help Wanted Domain: lib.d.ts

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Crash： when inferring from a tuple with middle rest elements and trailing variadic elements 7 months ago

Bug Help Wanted Domain: Crashes

microsoft/TypeScript

109.7K

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

TypeScript

#javascript#language#typechecker#typescript

Open Issues Need Help