Issues

• map on tuples with more than 5 elements

  BugFixed
  microsoft/TypeScript#13840 · by Filter by author John-Colvin was closed on Jun 4, 2017 · TypeScript 2.4

• Suggestion: option to include undefined in index signatures

  CommittedSuggestion
  microsoft/TypeScript#13778 · by Filter by author OliverJAsh was closed on Sep 11, 2020 · TypeScript 4.1.0
  248

• Allow deriving from object and intersection types

  Unread
  microsoft/TypeScript#13604·by ahejlsberg was merged Jan 21, 2017
  19

• Typescript doesn't detect correct type in constant array.

  SuggestionToo Complex
  microsoft/TypeScript#13578 · by Filter by author emilio was closed on Apr 24, 2017
  4

• Custom Type Operator

  Out of ScopeToo Complex
  microsoft/TypeScript#13500 · by Filter by author tinganho was closed on Sep 11, 2017
  10

• Rest type

  Unread
  microsoft/TypeScript#13470·by sandersn was closed Sep 5, 2018
  41

• Suggestion Backlog Slog, 1/2/2017

  Design Notes
  microsoft/TypeScript#13368 · by Filter by author RyanCavanaugh was closed on Jan 10, 2017
  3

  

• Array::reverse returns generic-sized array for tuples

  Working as Intended
  microsoft/TypeScript#13360 · by Filter by author JoshuaKGoldberg was closed on Jan 9, 2017
  5

• Interface with readonly property is assignable to interface with mutable property

  Awaiting More FeedbackSuggestion
  microsoft/TypeScript#13347 · Filter by author danielearwicker opened on Jan 7, 2017
  61

• Type manipulations: union to tuple

  DeclinedSuggestion
  microsoft/TypeScript#13298 · by Filter by author krryan was closed on May 17, 2019
  97

• keyof to produce a runtime array

  Out of ScopeSuggestion
  microsoft/TypeScript#13267 · by Filter by author markboyall was closed on Apr 24, 2017
  15

• allow zero-valent tuple type

  microsoft/TypeScript#13239 · by Filter by author zpdDG4gta8XKpMCd was closed on Jan 9, 2017
  19

• Suggestion: throws clause and typed catch clause

  DeclinedSuggestion
  microsoft/TypeScript#13219 · by Filter by author nitzantomer was closed on Apr 19, 2023
  279

• Add refactoring action to annotate a variable or a function signature component with its inferred type

  Awaiting More FeedbackDomain: LS: RefactoringsSuggestion
  microsoft/TypeScript#13199 · Filter by author rotemdan opened on Dec 28, 2016
  15

• Distinguish missing and undefined

  Breaking ChangeSuggestion
  microsoft/TypeScript#13195 · by Filter by author dgoldstein0 was closed on Jun 1, 2021 · TypeScript 4.4.0 (Beta)
  62

• Unions of objects/dictionaries/maps and tuples generate type errors when numeric keys are present

  Bug
  microsoft/TypeScript#13179 · by Filter by author jameswilddev was closed on Apr 25, 2017 · TypeScript 2.4
  3

  

• Tuples are inferred as arrays, losing information

  Working as Intended
  microsoft/TypeScript#13151 · by Filter by author pelotom was closed on Dec 30, 2016
  3

• Empty tuple type now meaningful (at least, in unions)

  FixedSuggestion
  microsoft/TypeScript#13126 · by Filter by author krryan was closed on Aug 13, 2018 · TypeScript 3.0
  13

  

• Exact Types

  Awaiting More FeedbackSuggestion
  microsoft/TypeScript#12936 · Filter by author blakeembrey opened on Dec 15, 2016
  312

• Augment Key during Type Mapping

  Domain: Literal TypesDomain: Mapped TypesIn DiscussionSuggestion
  microsoft/TypeScript#12754 · by Filter by author MeirionHughes was closed on Sep 10, 2020
  88

• TS2488 Type must have a '[Symbol.iterator]()' method that returns an iterator. TypeScript Virtual Projects

  Question
  microsoft/TypeScript#12707 · by Filter by author stefdelec was closed on Apr 20, 2017
  11

• Type [number,number] is not recognized correctly

  Duplicate
  microsoft/TypeScript#12579 · by Filter by author k8w was closed on Nov 30, 2016
  4

• Proposal: add a built-in reduce function on the type level

  Needs Investigation
  microsoft/TypeScript#12512 · by Filter by author KiaraGrouwstra was closed on Jun 13, 2017
  3

• Mapped conditional types

  FixedSuggestion
  microsoft/TypeScript#12424 · by Filter by author matt-hensley was closed on Feb 3, 2018 · TypeScript 2.8
  62

• Treating undefined parameters as optional

  CommittedHelp WantedSuggestion
  microsoft/TypeScript#12400 · Filter by author unional opened on Nov 21, 2016 · Backlog
  42