3 Issues closed by 2 people

• disallow impossible type predicates (or give them a type other than `never`)

  #61502 closed Mar 28, 2025

• TypeScript 5.7 Iteration Plan

  #59905 closed Mar 28, 2025

• TypeScript 5.6 Iteration Plan

  #59250 closed Mar 28, 2025

1 Issue opened by 1 person

• Covariant generic parameters fail unification

  #61503 opened Mar 28, 2025

40 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Add new release publisher yaml

  #61491 commented on Mar 28, 2025 • 6 new comments

• Expandable hover

  #61492 commented on Mar 28, 2025 • 1 new comment

• Compile error if I named last array destructuring element.

  #41548 commented on Mar 29, 2025 • 0 new comments

• Error when trying to assign a subclass of a base class with generics to `typeof` of that base class

  #41770 commented on Mar 29, 2025 • 0 new comments

• Correctly handle generic functions (e.g.: `Object.freeze`) passed as callbacks to generic functions (e.g.: `Array.prototype.map`)

  #42862 commented on Mar 29, 2025 • 0 new comments

• Broken emit when `Infinity` or `‑Infinity` ends up in a type position

  #42905 commented on Mar 29, 2025 • 0 new comments

• Typescript 4.2.x - incorrectly infered generic return type of a record union (extra undefined)

  #43943 commented on Mar 29, 2025 • 0 new comments

• Support inferring `never` as the return type in JavaScript when overriding a class method that returns `never`

  #46791 commented on Mar 29, 2025 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented on Mar 29, 2025 • 0 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented on Mar 29, 2025 • 0 new comments

• Order of ReadonlySet/ReadonlyMap in union causes differing key inference

  #52313 commented on Mar 29, 2025 • 0 new comments

• Expression produces a union type that is too complex to represent

  #53234 commented on Mar 29, 2025 • 0 new comments

• Crash when defining `Array` type via `[]` syntax

  #57009 commented on Mar 29, 2025 • 0 new comments

• mapped type with remapped keys unexpectedly widens type

  #57265 commented on Mar 29, 2025 • 0 new comments

• Inconsistent type inference on overloaded function types

  #57351 commented on Mar 29, 2025 • 0 new comments

• Error not issued when global type is an alias of an object type literal

  #57564 commented on Mar 29, 2025 • 0 new comments

• Inconsistent typechecking with require() in JS and TS

  #60032 commented on Mar 29, 2025 • 0 new comments

• Broken Autocomplete and Type Display For Parameters Dependent on Transitively Contextually Typed Return Type

  #61500 commented on Mar 29, 2025 • 0 new comments

• Expose design-time type information in TC39 decorator metadata when `emitDecoratorMetadata: true`

  #57533 commented on Mar 29, 2025 • 0 new comments

• Fix IsolatedDeclarations annotations can duplicate comments

  #61497 commented on Mar 28, 2025 • 0 new comments

• Module resolution: `"node"` condition does not work when using `moduleResolution=bundler`

  #61357 commented on Mar 28, 2025 • 0 new comments

• require() is generated in JS although there's no runtime code

  #61395 commented on Mar 28, 2025 • 0 new comments

• Never-initialized variable type is not narrowed to undefined

  #61496 commented on Mar 28, 2025 • 0 new comments

• [isolatedDeclarations] Optional parameter properties are unnecessarily disallowed in isolatedDeclarations mode

  #61501 commented on Mar 28, 2025 • 0 new comments

• TS 5.8 TypeError: Cannot read properties of undefined (reading 'kind')

  #61351 commented on Mar 28, 2025 • 0 new comments

• using `projectService.setHostConfiguration` in a plugin is invalid

  #61302 commented on Mar 28, 2025 • 0 new comments

• `// @ts-mutate` decorator/directive

  #61179 commented on Mar 28, 2025 • 0 new comments

• Failed type check in monorepo project.

  #61200 commented on Mar 28, 2025 • 0 new comments

• Mixins created from `obj.constructor` cannot have members

  #61255 commented on Mar 28, 2025 • 0 new comments

• BUG: TypeScript: `this.constructor` inside instance method (not `static`) inside `class` doesnt work in autocomplete

  #61356 commented on Mar 29, 2025 • 0 new comments

• disallow comparing to null and undefined unless they are valid cases in strict null mode

  #11920 commented on Mar 29, 2025 • 0 new comments

• Support @class in JSDoc

  #12681 commented on Mar 29, 2025 • 0 new comments

• Error inferring types of promise function

  #17873 commented on Mar 29, 2025 • 0 new comments

• this any typed in some JS object literals

  #22058 commented on Mar 29, 2025 • 0 new comments

• Suggestion: Type annotations and interfaces for function declarations

  #22063 commented on Mar 29, 2025 • 0 new comments

• Allow extending types referenced through interfaces

  #31843 commented on Mar 29, 2025 • 0 new comments

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

  #33471 commented on Mar 29, 2025 • 0 new comments

• Implicit Symbol.iterator call in for..of loops / spread destructuring doesn't infer `this` generic type parameter

  #38388 commented on Mar 29, 2025 • 0 new comments

• improper declared type cause narrow type not work when its computed type is not union.

  #39114 commented on Mar 29, 2025 • 0 new comments

• In JSDoc @type is not a type declaration, which it is much more like type conversion.

  #39650 commented on Mar 29, 2025 • 0 new comments