2 Pull requests merged by 2 people

• Bump github/codeql-action from 3.28.10 to 3.28.11 in the github-actions group

  #61387 merged Mar 10, 2025

• LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20250306202248269 to main

  #61368 merged Mar 6, 2025

11 Pull requests opened by 6 people

• fix: diagnostic message for class name 'Object' when targeting different ECMAScript versions

  #61358 opened Mar 5, 2025

• Bring back return type narrowing + fixes

  #61359 opened Mar 5, 2025

• Improve union origin preservation in filtering-unionizing binary expressions

  #61362 opened Mar 6, 2025

• Fixed nullish coalesce operator's precedence

  #61372 opened Mar 7, 2025

• Fixed an issue causing spurious "used before being assigned" errors in for of/in loops

  #61376 opened Mar 7, 2025

• Fixed references search for dynamic imports of indirect default exports

  #61379 opened Mar 8, 2025

• Improve references search and quick info on properties with type errors within nullable contextual types

  #61383 opened Mar 9, 2025

• Fix serialization of accessor types in declaration files.

  #61392 opened Mar 10, 2025

• Improve narrowing by `in` operator under `noUncheckedIndexedAccess` for variable properties

  #61393 opened Mar 11, 2025

• Sort unions without using type IDs

  #61399 opened Mar 11, 2025

• Fix typos

  #61404 opened Mar 12, 2025

18 Issues closed by 12 people

• Mistake in the docs

  #57005 closed Mar 12, 2025

• Refactor `getTypeOfSymbol` for Improved Readability and Maintainability

  #61401 closed Mar 12, 2025

• When subclassing incorrectly, the compiler error suggests changing base class rather than the derived one

  #61407 closed Mar 12, 2025

• How should we interpret the compatibility between optional-never objects and normal objects?

  #61396 closed Mar 11, 2025

• A minimal custom transformer plugin proposal

  #54276 closed Mar 11, 2025

• Incorrect Type Inference for Array Properties in Recursive Type Definitions

  #61394 closed Mar 11, 2025

• Allow Type Extraction and/or Access from `#` Private Fields and Methods in TypeScript Classes

  #61397 closed Mar 11, 2025

• Unable to do module augmentation

  #61367 closed Mar 9, 2025

• Class incorrectly implements interface containing methods with optional parameters

  #61380 closed Mar 8, 2025

• Improper computed object key strictness inside loop

  #61377 closed Mar 8, 2025

• TypeScript not enforcing interface implementation when the interface and class share the same name

  #61370 closed Mar 8, 2025

• TS1166 reported for imported symbol as computed property name in generated d.ts

  #61360 closed Mar 7, 2025

• Refinement in async function

  #61365 closed Mar 6, 2025

• TS 5.8 JSX.ElementChildrenAttribute break

  #61354 closed Mar 6, 2025

• TS 5.8: False positives for conditional expression in return type check

  #61337 closed Mar 6, 2025

• JSDoc type is not narrowing a union (but typescript does)

  #61339 closed Mar 6, 2025

• Incorrect type narrowing for tuples

  #61332 closed Mar 6, 2025

• Type order is random in hover highlight dialog

  #61336 closed Mar 6, 2025

26 Issues opened by 23 people

• A flag to replace removed syntax with blank space

  #61410 opened Mar 12, 2025

• Unexpected "property is not assignable to type 'undefined'" on dynamic assignment

  #61409 opened Mar 12, 2025

• Omit Type

  #61408 opened Mar 12, 2025

• `transformTime` performance regression since 5.6.x

  #61406 opened Mar 12, 2025

• Unreliably report for unused local variable in the editor

  #61403 opened Mar 12, 2025

• Still only the last overloaded signature is picked when passing an overloaded function to Array.map

  #61398 opened Mar 11, 2025

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

  #61395 opened Mar 11, 2025

• Unbound type parameter in declaration files for accessors with divergent types.

  #61391 opened Mar 10, 2025

• Perf degradation since last version upgrade

  #61400 opened Mar 10, 2025

• `ReadableStreamGenericReader` is incompatible with @types/node

  #61390 opened Mar 10, 2025

• 'in' does not remove undefined from indexed value (with noUncheckedIndexedAccess)

  #61389 opened Mar 10, 2025

• Array access possibly undefined with noUncheckedIndexedAccess despite findIndex

  #61388 opened Mar 10, 2025

• [ServerErrors][TypeScript] 5.9.0-dev.20250309 vs 5.8.2

  #61386 opened Mar 9, 2025

• [ServerErrors][JavaScript] 5.9.0-dev.20250309 vs 5.8.2

  #61385 opened Mar 9, 2025

• [NewErrors] 5.9.0-dev.20250309 vs 5.8.2

  #61384 opened Mar 9, 2025

• Regression in the way optional properties behave when there's an error in the property value

  #61382 opened Mar 9, 2025

• Array.isArray( ) with readonly []

  #61381 opened Mar 9, 2025

• `for`-`let` + inner function incorrectly says variable is used before being assigned

  #61375 opened Mar 7, 2025

• Add initializer property to JSDocParameterTag node

  #61373 opened Mar 7, 2025

• Add allowImportingJsExtensions option to prevent incorrect .js imports

  #61371 opened Mar 7, 2025

• The terms in the Refactor menu are not internationalized.

  #61374 opened Mar 7, 2025

• Manually constructed nullish coalescing AST is missing parentheses when printed

  #61369 opened Mar 7, 2025

• References from dynamic imports not recognized when indirectly exporting variable

  #61366 opened Mar 6, 2025

• Generic function constraints degrade in conditionas but work in higher order functions

  #61364 opened Mar 6, 2025

• Introduce `strictCustomConditions` option for custom `exports` / `imports` conditions with no fallback to other conditions if the file does not exist

  #61363 opened Mar 6, 2025

• get property return type inferred incorrectly from 'this' type, when other methods exist

  #61361 opened Mar 6, 2025

76 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.

• Fix for Issue 61081

  #61221 commented on Mar 7, 2025 • 4 new comments

• Fix the issue where modifying `extraFileExtensions` through `ProjectService.setHostConfiguration` in the plugin has no effect.

  #61303 commented on Mar 10, 2025 • 1 new comment

• support quick info and go to definition on mapped keys

  #61061 commented on Mar 12, 2025 • 1 new comment

• fix(57026): Renaming on declaration whose name is a String Literal

  #61353 commented on Mar 7, 2025 • 0 new comments

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

  #43943 commented on Mar 12, 2025 • 0 new comments

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

  #42905 commented on Mar 12, 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 12, 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 12, 2025 • 0 new comments

• Compile error if I named last array destructuring element.

  #41548 commented on Mar 12, 2025 • 0 new comments

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

  #39650 commented on Mar 12, 2025 • 0 new comments

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

  #39114 commented on Mar 12, 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 12, 2025 • 0 new comments

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

  #33471 commented on Mar 12, 2025 • 0 new comments

• Allow extending types referenced through interfaces

  #31843 commented on Mar 12, 2025 • 0 new comments

• Suggestion: Type annotations and interfaces for function declarations

  #22063 commented on Mar 12, 2025 • 0 new comments

• this any typed in some JS object literals

  #22058 commented on Mar 12, 2025 • 0 new comments

• Error inferring types of promise function

  #17873 commented on Mar 12, 2025 • 0 new comments

• Support @class in JSDoc

  #12681 commented on Mar 12, 2025 • 0 new comments

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

  #11920 commented on Mar 12, 2025 • 0 new comments

• Consider property access a form of type guards

  #1260 commented on Mar 12, 2025 • 0 new comments

• Typescript type hint problem

  #60725 commented on Mar 12, 2025 • 0 new comments

• Implement(60881): Added detailed diagnostic for parent to child assignment

  #61145 commented on Mar 6, 2025 • 0 new comments

• Add the type of Intl.DurationFormat to the lib.

  #60646 commented on Mar 9, 2025 • 0 new comments

• More specific TemplateStringsArray type for tagged templates

  #49552 commented on Mar 11, 2025 • 0 new comments

• Add math intrinsic types

  #48198 commented on Mar 12, 2025 • 0 new comments

• Support for declaring index signatures using JSDoc

  #48096 commented on Mar 12, 2025 • 0 new comments

• Computed import types

  #44636 commented on Mar 12, 2025 • 0 new comments

• Unexpected "'Type' is declared but its value is never read." error with jsdoc @import syntax

  #60908 commented on Mar 12, 2025 • 0 new comments

• Inconsistent typechecking with require() in JS and TS

  #60032 commented on Mar 12, 2025 • 0 new comments

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

  #57564 commented on Mar 12, 2025 • 0 new comments

• Inconsistent type inference on overloaded function types

  #57351 commented on Mar 12, 2025 • 0 new comments

• mapped type with remapped keys unexpectedly widens type

  #57265 commented on Mar 12, 2025 • 0 new comments

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

  #57009 commented on Mar 12, 2025 • 0 new comments

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

  #53234 commented on Mar 12, 2025 • 0 new comments

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

  #52313 commented on Mar 12, 2025 • 0 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented on Mar 12, 2025 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented on Mar 12, 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 12, 2025 • 0 new comments

• TS:1379 An import alias cannot reference a declaration that was exported using 'export type'

  #54855 commented on Mar 10, 2025 • 0 new comments

• Define a global context in a function signature, to enforce typing.

  #43434 commented on Mar 10, 2025 • 0 new comments

• Typescript Watch - Cleaning Target Files on Source Deletion

  #16057 commented on Mar 10, 2025 • 0 new comments

• Exact Types

  #12936 commented on Mar 9, 2025 • 0 new comments

• Inferring a generic should put the type variable in the inner scope when possible

  #49505 commented on Mar 9, 2025 • 0 new comments

• “Type instantiation is excessively deep and possibly infinite” but only in a large codebase

  #34933 commented on Mar 9, 2025 • 0 new comments

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

  #21699 commented on Mar 9, 2025 • 0 new comments

• Define 'tagName' values in Element interfaces to prevent misleading type acceptance.

  #45218 commented on Mar 9, 2025 • 0 new comments

• TypeScripts Type System is Turing Complete

  #14833 commented on Mar 8, 2025 • 0 new comments

• Talk about Exceptions Here

  #56365 commented on Mar 8, 2025 • 0 new comments

• Support Expandable Quick Info/Hover Verbosity

  #59029 commented on Mar 8, 2025 • 0 new comments

• `as enum` assertion for object literals

  #60790 commented on Mar 8, 2025 • 0 new comments

• Javascript: Object.assign to assign property values for classes is not respected

  #26792 commented on Mar 8, 2025 • 0 new comments

• List @deprecated strikethroughs in Problems tab

  #40604 commented on Mar 7, 2025 • 0 new comments

• Auto-import priority rules

  #51155 commented on Mar 7, 2025 • 0 new comments

• Class satisfies type

  #61324 commented on Mar 7, 2025 • 0 new comments

• Allow specifying exclude as a command line option

  #46005 commented on Mar 7, 2025 • 0 new comments

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

  #61357 commented on Mar 6, 2025 • 0 new comments

• rewriteRelativeImportExtensions & enforce consistent extensions

  #61021 commented on Mar 5, 2025 • 0 new comments

• Accessors should be allowed to be optional

  #54240 commented on Mar 12, 2025 • 0 new comments

• tsserver should implement the Language Server Protocol

  #39459 commented on Mar 12, 2025 • 0 new comments

• 6.0 Deprecation Candidates

  #54500 commented on Mar 11, 2025 • 0 new comments

• Alternative to rewriteRelativeImportExtensions & allowImportingTsExtensions

  #61050 commented on Mar 11, 2025 • 0 new comments

• Allow mapped type to declare functions

  #48125 commented on Mar 11, 2025 • 0 new comments

• 'identity' modifier to indicate a function's parameter-less returns should be narrowed like a value

  #60948 commented on Mar 11, 2025 • 0 new comments

• Add override / noImplicitOverride support for interfaces

  #45136 commented on Mar 11, 2025 • 0 new comments

• Option in TSConfig to include hidden/dot files

  #49555 commented on Mar 11, 2025 • 0 new comments

• "Referenced projects must have the new composite setting enabled" does not hold true

  #60465 commented on Mar 11, 2025 • 0 new comments

• Combining destructuring with parameter properties

  #5326 commented on Mar 11, 2025 • 0 new comments

• Different 'find all references' results on export default depending on trigger position

  #48676 commented on Mar 11, 2025 • 0 new comments

• FEATURE REQUEST: For TypeScript / JS add new refactor feature: if class method can be static add tooltip "make method static"

  #58588 commented on Mar 10, 2025 • 0 new comments

• Huge jump in tsc memory usage from 5.5.4 -> 5.6.2

  #60166 commented on Mar 10, 2025 • 0 new comments

• Allow for optional index signatures (for the sake of `exactOptionalPropertyTypes`)

  #46969 commented on Mar 10, 2025 • 0 new comments

• Support for `JSON.rawJSON()`

  #61330 commented on Mar 10, 2025 • 0 new comments

• Show unused public properties and methods

  #29293 commented on Mar 10, 2025 • 0 new comments

• dynamic import from module=none of an module=es2022 via barrel reemits it as commonjs

  #61316 commented on Mar 10, 2025 • 0 new comments

• Request: Class Decorator Mutation

  #4881 commented on Mar 10, 2025 • 0 new comments

• Allow to add a call signature to the Mapped Type OR to remove all `Function.prototype` methods

  #27575 commented on Mar 10, 2025 • 0 new comments