Backlog

Issues

• Deprecation error message reporting method type as deprecated instead of method name

  BugDomain: Error MessagesHelp Wanted
  microsoft/TypeScript#62396 · Filter by author andrewbranch opened on Sep 4, 2025 · Backlog
  1

• Distribute property type union members to create union of object types

  BugDomain: check: Type Inference
  microsoft/TypeScript#36969 · Filter by author ethanresnick opened on Feb 23, 2020 · Backlog
  3

• "const" was transformed to "var" when target is "esnext"

  BugDomain: JS EmitHelp Wanted
  microsoft/TypeScript#59877 · Filter by author Roise-yue opened on Sep 6, 2024 · Backlog
  3

• Incorrect use-before-declaration error in async IIFE initializer

  BugDomain: BinderHelp Wanted
  microsoft/TypeScript#50123 · Filter by author Jessidhia opened on Aug 1, 2022 · Backlog
  7

• [TS 5.4.0-beta] .d.ts emit adding an inline type import instead of utilising existing import

  Domain: Declaration EmitHelp WantedPossible Improvement
  microsoft/TypeScript#57415 · Filter by author acutmore opened on Feb 15, 2024 · Backlog
  8

• Narrowing discriminated union via type predicate and type assertion results in different behavior.

  Needs Investigation
  microsoft/TypeScript#45770 · Filter by author MicahZoltu opened on Sep 7, 2021 · Backlog
  

• Problem with infer two types from string at same time

  Needs Investigation
  microsoft/TypeScript#56936 · Filter by author AtataUruru opened on Jan 3, 2024 · Backlog
  11

  

• Decouple jsx element type from jsx factory return type and sfc return type

  Breaking ChangeDomain: JSX/TSXEffort: ModerateSuggestion
  microsoft/TypeScript#21699 · Filter by author weswigham opened on Feb 6, 2018 · Backlog
  123

• Go to definition for TypeScript literal strings

  Domain: LS: Symbol NavigationExperience EnhancementHelp WantedSuggestion
  microsoft/TypeScript#49033 · Filter by author KATT opened on May 9, 2022 · Backlog
  14

• Conditional type prevents assignability

  BugDomain: Conditional TypesHelp Wanted
  microsoft/TypeScript#48033 · Filter by author dylhunn opened on Feb 25, 2022 · Backlog
  11

• deleteCount param to splice() is not optional in es5 types

  BugDomain: lib.d.ts
  microsoft/TypeScript#32638 · Filter by author tjenkinson opened on Jul 31, 2019 · Backlog
  15

• Trigger Node type acquisition on matching shebang

  Domain: JavaScriptExperience EnhancementSuggestion
  microsoft/TypeScript#46278 · Filter by author Mlocik97 opened on Oct 8, 2021 · Backlog
  4

• Dangerous "name" (and potentially others) global

  CommittedDomain: lib.d.tsGood First IssueHelp WantedSuggestion
  microsoft/TypeScript#18433 · Filter by author pocesar opened on Sep 13, 2017 · Backlog
  77

• cloneNode should return sub type, not Node

  BugDomain: lib.d.tsHelp Wanted
  microsoft/TypeScript#283 · Filter by author dlee opened on Jul 28, 2014 · Backlog
  25

• Abstract classes will still import the value for a computed property at runtime

  BugDomain: JS Emit
  microsoft/TypeScript#33525 · Filter by author puppy0cam opened on Sep 20, 2019 · Backlog
  4

• Intellisense does not work with [P in keyof T]

  Experience EnhancementSuggestion
  microsoft/TypeScript#13701 · Filter by author geverges-oleg opened on Jan 26, 2017 · Backlog

• Support Intellisense for string/number literals in a widened union

  Experience EnhancementHas ReproSuggestion
  microsoft/TypeScript#33471 · Filter by author orta opened on Sep 17, 2019 · Backlog
  11

• jsdoc mouse hover definition {Array.<static class>} bug

  Experience EnhancementSuggestion
  microsoft/TypeScript#33455 · Filter by author jonlepage opened on Sep 16, 2019 · Backlog
  3

• navto does not include jsdoc @typedef symbols

  Experience EnhancementSuggestion
  microsoft/TypeScript#33404 · Filter by author mjbvz opened on Sep 13, 2019 · Backlog

• support destructuring parameter @param tag in tsdoc

  Experience EnhancementSuggestion
  microsoft/TypeScript#33367 · Filter by author xiaoxiangmoe opened on Sep 11, 2019 · Backlog

• Type of heterogeneous enum value can't be inferred correctly when used in object literal

  BugDomain: enum
  microsoft/TypeScript#33439 · Filter by author whzx5byb opened on Sep 15, 2019 · Backlog

• Signature help not select correct overload for partially completed function

  Experience EnhancementSuggestion
  microsoft/TypeScript#33328 · Filter by author mjbvz opened on Sep 9, 2019 · Backlog
  3

• Goto definition after field exclusion should go to prop signature

  Domain: LS: Symbol NavigationExperience EnhancementSuggestion
  microsoft/TypeScript#23216 · Filter by author cevek opened on Apr 6, 2018 · Backlog
  8

• Recursive conditional types are aliased

  Experience EnhancementSuggestion
  microsoft/TypeScript#22575 · Filter by author lstkz opened on Mar 14, 2018 · Backlog
  6

• Cannot infer generic argument type from passed callback

  BugCursed?Domain: check: Type Inference
  microsoft/TypeScript#31146 · Filter by author kolodny opened on Apr 28, 2019 · Backlog
  15