2 Pull requests merged by 2 people

• fix(checker): report error when using bigint as enum key

  #61777 merged Jun 5, 2025

• fix(61747): for (using of = is incorrectly parsed

  #61764 merged Jun 5, 2025

6 Issues closed by 2 people

• ts plugin provide color

  #61773 closed Jun 6, 2025

• noUnusedLocals doesn't error when using a ...rest declaration

  #61748 closed Jun 6, 2025

• `someBool || true` gets the literal type `true` when assigned to a `let` variable at initialization (unlike `true` getting the type `boolean`)

  #61799 closed Jun 6, 2025

• Declaration Order Affects Type Checking

  #61806 closed Jun 6, 2025

• enum member key should reject bigint

  #61772 closed Jun 5, 2025

• `for (using of =` is incorrectly parsed.

  #61747 closed Jun 5, 2025

1 Issue opened by 1 person

• Pipe Operator instead of conditions and deep extends

  #61819 opened Jun 5, 2025

57 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 type definitions for `Uint8Array` to/from base64 methods

  #61696 commented on Jun 5, 2025 • 3 new comments

• feat: add Error.isError() to ESNext lib

  #60788 commented on Jun 6, 2025 • 3 new comments

• Add check for unknown type

  #61810 commented on Jun 5, 2025 • 1 new comment

• renamedDependencies not working with ESM

  #61811 commented on Jun 5, 2025 • 0 new comments

• Prevent union of enums with same values (non-narrowable unions)

  #46085 commented on Jun 5, 2025 • 0 new comments

• Format on paste deletes jsx comment content

  #61749 commented on Jun 5, 2025 • 0 new comments

• Add ES2025 target and library

  #61735 commented on Jun 5, 2025 • 0 new comments

• Tuples: maintaining type-param in the type of it's items

  #61750 commented on Jun 5, 2025 • 0 new comments

• Switch-like statement to avoid repetitive 'extends' ternary

  #51375 commented on Jun 5, 2025 • 0 new comments

• Incorrect capitalisation for `checkJs`

  #61801 commented on Jun 5, 2025 • 0 new comments

• Skip assignment narrowing when declaring & initializing a variable in the same statement

  #61789 commented on Jun 5, 2025 • 0 new comments

• Generic TypedArray constructors have only one overload

  #61680 commented on Jun 5, 2025 • 0 new comments

• Intersection of `object` and array breaks homomorphism

  #61745 commented on Jun 5, 2025 • 0 new comments

• Completions for type arguments of expressions

  #61751 commented on Jun 5, 2025 • 0 new comments

• Parenthesis break narrowing.

  #61784 commented on Jun 5, 2025 • 0 new comments

• Reference missing with declare module

  #61766 commented on Jun 5, 2025 • 0 new comments

• Spreading constrained generic parameters allows for invalid/unsafe return types

  #61754 commented on Jun 5, 2025 • 0 new comments

• ReturnType is lost after a simple wrapper function

  #61780 commented on Jun 5, 2025 • 0 new comments

• Improve string split return type of first array index

  #53362 commented on Jun 5, 2025 • 0 new comments

• Overloads for String.prototype.split method

  #61816 commented on Jun 5, 2025 • 0 new comments

• Make the `sourceFile.commentDirectives` property public

  #61809 commented on Jun 5, 2025 • 0 new comments

• `declare namespace { using ... }` generates incorrect dts

  #61752 commented on Jun 5, 2025 • 0 new comments

• [BUG] This JSX tag requires the module path 'react/jsx-runtime' to exist, but none could be found. Make sure you have types for the appropriate package installed.

  #61756 commented on Jun 5, 2025 • 0 new comments

• Add support for `import defer` proposal

  #60757 commented on Jun 5, 2025 • 0 new comments

• Cache mapper instantiations

  #61505 commented on Jun 5, 2025 • 0 new comments

• Fix type variable leaks and cache inconsistencies

  #61668 commented on Jun 5, 2025 • 0 new comments

• Fix capitalisation for `checkJs`

  #61795 commented on Jun 5, 2025 • 0 new comments

• tsc --init update

  #61813 commented on Jun 5, 2025 • 0 new comments

• Fix helpers emit for .cjs files in ESM module mode

  #61814 commented on Jun 5, 2025 • 0 new comments

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

  #11920 commented on Jun 5, 2025 • 0 new comments

• Support @class in JSDoc

  #12681 commented on Jun 5, 2025 • 0 new comments

• Error inferring types of promise function

  #17873 commented on Jun 5, 2025 • 0 new comments

• this any typed in some JS object literals

  #22058 commented on Jun 5, 2025 • 0 new comments

• Suggestion: Type annotations and interfaces for function declarations

  #22063 commented on Jun 5, 2025 • 0 new comments

• Allow extending types referenced through interfaces

  #31843 commented on Jun 5, 2025 • 0 new comments

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

  #33471 commented on Jun 5, 2025 • 0 new comments

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

  #38388 commented on Jun 5, 2025 • 0 new comments

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

  #39114 commented on Jun 5, 2025 • 0 new comments

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

  #39650 commented on Jun 5, 2025 • 0 new comments

• Compile error if I named last array destructuring element.

  #41548 commented on Jun 5, 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 Jun 5, 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 Jun 5, 2025 • 0 new comments

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

  #42905 commented on Jun 5, 2025 • 0 new comments

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

  #43943 commented on Jun 5, 2025 • 0 new comments

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

  #46791 commented on Jun 5, 2025 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented on Jun 5, 2025 • 0 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented on Jun 5, 2025 • 0 new comments

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

  #52313 commented on Jun 5, 2025 • 0 new comments

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

  #53234 commented on Jun 5, 2025 • 0 new comments

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

  #57009 commented on Jun 5, 2025 • 0 new comments

• mapped type with remapped keys unexpectedly widens type

  #57265 commented on Jun 5, 2025 • 0 new comments

• Inconsistent type inference on overloaded function types

  #57351 commented on Jun 5, 2025 • 0 new comments

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

  #57564 commented on Jun 5, 2025 • 0 new comments

• Inconsistent typechecking with require() in JS and TS

  #60032 commented on Jun 5, 2025 • 0 new comments

• Cannot assign Uint8Array type to Uint8Array variable created with constructor

  #61793 commented on Jun 5, 2025 • 0 new comments

• Potentially misleading documentation for the `types` TSConfig option

  #61256 commented on Jun 5, 2025 • 0 new comments

• Misleading error for a generic parameter with a default involving `this`

  #61812 commented on Jun 5, 2025 • 0 new comments