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GitHub / microsoft/TypeScript issues and pull requests

#62943 - infer property setter type

Issue - State: open - Opened by waelbettayeb 2 months ago - 1 comment

#62942 - Bump qs from 6.14.0 to 6.14.1

Pull Request - State: open - Opened by dependabot[bot] 2 months ago
Labels: For Uncommitted Bug, dependencies, javascript

#62931 - Fix type parameter leak when using 'this' in reverse mapped types

Pull Request - State: open - Opened by thromel 2 months ago - 1 comment
Labels: For Backlog Bug

#62923 - Fix crash in abstract property checking

Pull Request - State: closed - Opened by ahejlsberg 3 months ago - 1 comment
Labels: Author: Team, For Uncommitted Bug

#62918 - Bump github/codeql-action from 4.31.8 to 4.31.9 in the github-actions group

Pull Request - State: open - Opened by dependabot[bot] 3 months ago
Labels: For Uncommitted Bug, dependencies, github_actions

#62590 - Allow line break before import attributes `with` keyword

Issue - State: open - Opened by fisker 5 months ago - 3 comments
Labels: Bug, Help Wanted

#62588 - Bump github/codeql-action from 3.30.6 to 4.30.8 in the github-actions group

Pull Request - State: open - Opened by dependabot[bot] 5 months ago
Labels: For Uncommitted Bug, dependencies, github_actions

#62583 - Design Meeting Notes, 9/9/2025

Issue - State: open - Opened by DanielRosenwasser 5 months ago - 1 comment
Labels: Design Notes

#62581 - 2

Issue - State: closed - Opened by Avp322AnT 5 months ago
Labels: invalid

#62580 - LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20251010161228890 to main

Pull Request - State: closed - Opened by csigs 5 months ago - 2 comments
Labels: For Uncommitted Bug

#62579 - The `@ts-ignore` vs. `@ts-expect-error` Dilemma: Missing a Warning-Only Redundancy Check

Issue - State: open - Opened by bent0b0x 5 months ago - 3 comments
Labels: Suggestion, Awaiting More Feedback

#62578 - update falling baselines after latest changes

Pull Request - State: closed - Opened by KunalD81 5 months ago - 3 comments
Labels: For Uncommitted Bug

#62577 - Since 5.0, the function parseJsonConfigFileContent is no longer built-in in _tsc.js

Issue - State: closed - Opened by Imgodmaoyouknow 5 months ago - 3 comments
Labels: External

#62576 - Array.from(it: Iterable<X> | Iterable<Y>) fails; […it] works but returns Array<X | Y>; both should return Array<X> | Array<Y>

Issue - State: open - Opened by gormster 5 months ago - 3 comments
Labels: Suggestion, Awaiting More Feedback

#62575 - LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20251009194353192 to main

Pull Request - State: closed - Opened by csigs 5 months ago
Labels: For Uncommitted Bug

#62574 - Add extra test for extending multiple bases with incompatible optional property under EOPT

Pull Request - State: closed - Opened by Andarist 5 months ago - 1 comment
Labels: For Uncommitted Bug

#62573 - Use Partial<T> instead of Omit<T, keyof T> when rest spreading

Pull Request - State: closed - Opened by RyanCavanaugh 5 months ago - 7 comments
Labels: Author: Team, For Uncommitted Bug

#62572 - Destructuring all but one key dynamically via rest creates an unusable type by omitting all of its keys

Issue - State: open - Opened by branson-dyer 5 months ago - 2 comments
Labels: Experimentation Needed, Possible Improvement

#62571 - The position for writing the return type of the function should be changed.

Issue - State: closed - Opened by qqqqqq771 5 months ago - 2 comments
Labels: Suggestion, Declined

#62570 - Keep the keyword for defining variables, rather than changing it.

Issue - State: closed - Opened by qqqqqq771 5 months ago - 1 comment
Labels: Question

#62569 - New behavior in v6 when interface extends two incompatible interfaces under exactOptionalPropertyTypes

Issue - State: closed - Opened by chriskrycho 5 months ago - 8 comments
Labels: Working as Intended

#62568 - Remove circularity, rootDir errors from node modules compiler tests

Pull Request - State: closed - Opened by jakebailey 5 months ago
Labels: Author: Team, For Uncommitted Bug

#62567 - Deprecate esModuleInterop and allowSyntheticDefaultImports (default to true)

Pull Request - State: open - Opened by andrewbranch 5 months ago
Labels: Author: Team, For Uncommitted Bug

#62566 - Completion does not show `Boolean.prototype.toString()` on boolean type expression

Issue - State: closed - Opened by loucadufault 5 months ago - 2 comments
Labels: Duplicate

#62564 - Module resolution:

Issue - State: closed - Opened by winminthant448 5 months ago - 5 comments

#62563 - Properly account for start length when inferring into two variadic tuple elements when implied arity is available

Pull Request - State: open - Opened by Andarist 5 months ago - 6 comments
Labels: For Uncommitted Bug

#62561 - Two consecutive variadic elements in the middle part of tuple type can't be recognized

Issue - State: open - Opened by olegdunkan 5 months ago - 3 comments
Labels: Needs Investigation

#62560 - Record types are not enforced strictly enough when passed as parameters

Issue - State: closed - Opened by NVP12345 5 months ago - 1 comment

#62559 - LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20251007093810407 to main

Pull Request - State: closed - Opened by csigs 5 months ago
Labels: For Uncommitted Bug

#62558 - TS2742 “The inferred type of 'default' cannot be named” with ESLint `defineConfig`

Issue - State: open - Opened by andersk 5 months ago - 10 comments
Labels: Help Wanted, Possible Improvement

#62557 - Update error for allowImportingTsExtensions to mention rewriteRelativeImportExtensions

Pull Request - State: open - Opened by bakkot 5 months ago
Labels: For Backlog Bug

#62556 - [experiment] tsgo compat changes

Pull Request - State: open - Opened by jakebailey 5 months ago

#62550 - [ServerErrors][TypeScript] 6.0.0-dev.20251005 vs 5.9.3

Issue - State: closed - Opened by typescript-bot 5 months ago - 11 comments

#62548 - [ServerErrors][JavaScript] 6.0.0-dev.20251005 vs 5.9.3

Issue - State: closed - Opened by typescript-bot 5 months ago - 2 comments

#62547 - [NewErrors] 6.0.0-dev.20251005 vs 5.9.3

Issue - State: closed - Opened by typescript-bot 5 months ago - 335 comments

#62545 - LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20251005142903889 to main

Pull Request - State: closed - Opened by csigs 5 months ago
Labels: For Uncommitted Bug

#62544 - Add Type Safety for SQL Strings in TypeScript

Issue - State: closed - Opened by see7788 5 months ago - 5 comments
Labels: Suggestion, Out of Scope

#62543 - Performance Enhancement Opportunities: Advanced Caching and Memory Optimization

Issue - State: closed - Opened by jdmiranda 5 months ago - 5 comments
Labels: AI Spam

#62542 - Weird bug while inferring number from a string

Issue - State: closed - Opened by juhort 5 months ago - 2 comments
Labels: Duplicate

#62540 - Add a new `baseline` lib

Pull Request - State: open - Opened by 3ru 5 months ago

#62539 - Bug: Nested ternary operator indentation issue

Issue - State: closed - Opened by harshith1118 5 months ago - 2 comments
Labels: Unactionable

#62538 - Update DOM types for FileSystemDirectoryHandle changes

Pull Request - State: closed - Opened by jakebailey 5 months ago - 8 comments
Labels: Author: Team, For Uncommitted Bug

#62537 - Fix nested ternary operator indentation issue

Pull Request - State: closed - Opened by harshith1118 5 months ago - 3 comments
Labels: For Uncommitted Bug

#62536 - Support lib: "baseline-widely-available"

Issue - State: open - Opened by will-stone 5 months ago

#62532 - Director

Issue - State: open - Opened by winminthant448 5 months ago
Labels: Duplicate

#62531 - LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20251002192259503 to main

Pull Request - State: closed - Opened by csigs 5 months ago
Labels: For Uncommitted Bug

#62528 - Withdrawal in my account

Issue - State: open - Opened by Manikhan1322 5 months ago
Labels: Duplicate

#62527 - Implementation of abstract properties doesn't care about readonly and/or writeonly properties

Issue - State: closed - Opened by AFatNiBBa 5 months ago - 4 comments
Labels: Duplicate

#62526 - Augmentations merging

Issue - State: closed - Opened by yasmanets 5 months ago - 2 comments
Labels: Duplicate

#62522 - Fix releaser tag creation

Pull Request - State: open - Opened by jakebailey 5 months ago

#62521 - LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20251001192403117 to main

Pull Request - State: closed - Opened by csigs 5 months ago
Labels: For Uncommitted Bug

#62520 - Mapped type property causses different assignability error of compatible subtypes

Issue - State: closed - Opened by dragomirtitian 5 months ago - 2 comments
Labels: Won't Fix

#62516 - Fix: Make discriminant property selection order-independent in unions (#62512)

Pull Request - State: closed - Opened by prathmesh796 5 months ago - 9 comments
Labels: For Uncommitted Bug

#62515 - Fix incorrect test options

Pull Request - State: open - Opened by jakebailey 5 months ago

#62512 - Type checking of discriminated nullable union depends on type order

Issue - State: closed - Opened by maxpatiiuk 5 months ago - 2 comments
Labels: Fixed

#62511 - Discriminated union with 11+ items does not handle nullability same as union with <10 items

Issue - State: open - Opened by maxpatiiuk 5 months ago - 3 comments
Labels: Bug, Help Wanted

#62510 - Port microsoft/typescript-go#1764

Pull Request - State: closed - Opened by ahejlsberg 5 months ago - 6 comments
Labels: Author: Team, For Uncommitted Bug

#62509 - Deprecate baseUrl

Pull Request - State: closed - Opened by andrewbranch 5 months ago - 1 comment
Labels: Author: Team, For Milestone Bug

#62508 - 6.0 Migration Guide

Issue - State: open - Opened by RyanCavanaugh 5 months ago - 9 comments
Labels: Discussion

#62506 - [ServerErrors][TypeScript] 6.0.0-dev.20250928 vs 5.9.2

Issue - State: closed - Opened by typescript-bot 5 months ago - 5 comments

#62505 - Array of intersection is not intersection of arrays

Issue - State: closed - Opened by jsalvata 5 months ago - 2 comments
Labels: Duplicate

#62504 - [ServerErrors][JavaScript] 6.0.0-dev.20250928 vs 5.9.2

Issue - State: closed - Opened by typescript-bot 5 months ago - 2 comments

#62503 - [NewErrors] 6.0.0-dev.20250928 vs 5.9.2

Issue - State: closed - Opened by typescript-bot 5 months ago - 292 comments

#62502 - Port https://github.com/microsoft/typescript-go/pull/1759

Pull Request - State: closed - Opened by ahejlsberg 5 months ago - 7 comments
Labels: Author: Team, For Uncommitted Bug

#62501 - Port microsoft/typescript-go#1757

Pull Request - State: closed - Opened by ahejlsberg 5 months ago - 11 comments
Labels: Author: Team, For Uncommitted Bug

#62499 - Consider adopting npm trusted publishing

Issue - State: open - Opened by JamieMagee 5 months ago

#62498 - Support alias for undefined in type annotation for local variable in a function

Issue - State: closed - Opened by hannah23280 5 months ago - 2 comments
Labels: Duplicate

#62497 - Code snippets on devblogs.microsoft.com for Typescript 4.5 in dark mode are broken

Issue - State: closed - Opened by spanishpear 5 months ago - 2 comments
Labels: Won't Fix

#62495 - Nominal type

Issue - State: closed - Opened by achaozuiq 5 months ago - 1 comment

#62494 - Negated Types

Issue - State: closed - Opened by achaozuiq 5 months ago - 2 comments
Labels: Duplicate

#62491 - child_process spawn can't get tsc CLI stdout

Issue - State: closed - Opened by kimown 5 months ago - 6 comments

#62489 - Fix type `curve` property in `WaveShaperNode`

Pull Request - State: closed - Opened by Korilakkuma 5 months ago - 2 comments
Labels: For Uncommitted Bug

#62488 - Enhance Control‑Flow Narrowing for never‑returning Functions Passed as Parameters

Issue - State: closed - Opened by mattiamalonni 6 months ago - 4 comments
Labels: Design Limitation

#62485 - import does not search for sibling `.d.ts` file when the import is a bare module (non node)

Issue - State: closed - Opened by HolgerJeromin 6 months ago - 2 comments
Labels: Question

#62484 - Type hinting remains slow after version 5.9.2

Issue - State: open - Opened by wszgrcy 6 months ago - 8 comments
Labels: Needs More Info

#62483 - Disable conditional exports fallbacks on `null` values

Pull Request - State: open - Opened by andrewbranch 6 months ago

#62479 - Recursive Variadic Tuples not working for functional pipelines

Issue - State: closed - Opened by dariomannu 6 months ago - 5 comments
Labels: Duplicate

#62478 - user friendly infer

Issue - State: closed - Opened by AcsedyFN 6 months ago - 11 comments
Labels: Unactionable