Insights: microsoft/TypeScript

1 Release published by 1 person

• v5.0-beta TypeScript 5.0 Beta

  published Jan 27, 2023

19 Pull requests merged by 9 people

• Restore global `onProfilerEvent` hook for ts-perf

  #52523 merged Jan 31, 2023

• Prevent generation of dynamic require in library bundles

  #52522 merged Jan 30, 2023

• fix(52440): typeof ... === "undefined" check on mapped object member doesn't narrow correctly, for only some purposes

  #52456 merged Jan 30, 2023

• Remove extra checkDefined in visitEachChildOfJsxExpression

  #52482 merged Jan 30, 2023

• Ensure built/local exists before producing typesMap.json

  #52468 merged Jan 27, 2023

• Fix typo in diagnostic messages

  #52465 merged Jan 27, 2023

• Get export symbol if needed for verbatimModuleSyntax check on default/equals exports

  #52448 merged Jan 27, 2023

• Mark new createPrinter vars as pure to remove new code from typingsInstaller

  #52438 merged Jan 27, 2023

• In tsc --b mode detect if root file of compilation is not root any more

  #52417 merged Jan 27, 2023

• Mark allowArbitraryExtensions as affectsProgramStructure

  #52437 merged Jan 26, 2023

• Fix auto-imports with `--moduleResolution bundler` and `customConditions`

  #52423 merged Jan 26, 2023

• Port ignore deprecations to 4.9

  #52419 merged Jan 26, 2023

• Port timestamp fix to 4.9

  #52426 merged Jan 26, 2023

• Reuse Printers with common options

  #52382 merged Jan 25, 2023

• Fixed a mistake in the `narrowingDestructuring` test

  #52411 merged Jan 25, 2023

• Add 2023 array methods to target features

  #52242 merged Jan 25, 2023

• Revert part of catch clause PR which broke other declarations

  #52403 merged Jan 25, 2023

• Suppress verbatimModuleSyntax error on ambient `export default`

  #52414 merged Jan 25, 2023

• fix(52386): JSDoc code fixes for arrow-function initialized const duplicates comment

  #52390 merged Jan 25, 2023

23 Pull requests opened by 15 people

• imports: display completions to files with extensions from ambient modules

  #52406 opened Jan 25, 2023

• Add cache to auto-import package.json filter

  #52422 opened Jan 26, 2023

• check computed property names in overloads

  #52427 opened Jan 26, 2023

• fix(52418): "Convert to named function" breaks on concise return of async function

  #52434 opened Jan 26, 2023

• Fix transform flags for certain ES2020 features.

  #52445 opened Jan 27, 2023

• Prevent valid JSX from being seen as the start of a generic arrow function, fix crashes

  #52450 opened Jan 27, 2023

• Allow input superset for `Array.includes`

  #52451 opened Jan 27, 2023

• fix(52443): Regression: constructor accessor not allowed on plain objects

  #52452 opened Jan 27, 2023

• Skip parsing JSDoc in .ts files

  #52466 opened Jan 27, 2023

• Make getTypeOfSymbol, isArrayType, isTupleType public on TypeChecker

  #52467 opened Jan 27, 2023

• Fix(33829): `getSignaturesOfType` crash

  #52472 opened Jan 27, 2023

• Expose getStringLiteralType and getNumberLiteralType on the TypeChecker, plus remove /** @internal */ from several useful methods.

  #52473 opened Jan 28, 2023

• Check overload tag against implementation

  #52474 opened Jan 28, 2023

• remove the extra 'the' in error message number 2809

  #52481 opened Jan 28, 2023

• Allow nonNullAssertions on possibly-uninitialized auto-typed let variables

  #52483 opened Jan 29, 2023

• fix ordering of code fix import with triple-slash directives

  #52484 opened Jan 29, 2023

• Widen widening literal types through compound-like assignments

  #52493 opened Jan 30, 2023

• Fixed generic inference when the contextual type is a signature with properties

  #52495 opened Jan 30, 2023

• fix(52514): overload Tags do not receive noImplicitAny errors on missing return types

  #52518 opened Jan 30, 2023

• Use `missingType` instead of `undefinedType` for optional methods under `exactOptionalPropertyTypes`

  #52519 opened Jan 30, 2023

• Add test which verifies we are getting native performance hooks

  #52524 opened Jan 30, 2023

• Improve class member snippet completions and keyword completions interaction

  #52525 opened Jan 30, 2023

• Permit instantiation expressions in `typeof import(...)`

  #52532 opened Jan 31, 2023

56 Issues closed by 23 people

• Typescript loses constraint of `satisfies` on initial value/accumulator for Array.prototype.reduce

  #52526 closed Jan 31, 2023

• tsserverlibrary.js includes reference to `require` that causes webpack to complain

  #52521 closed Jan 30, 2023

• Raw string literals

  #52453 closed Jan 30, 2023

• `typeof ... === "undefined"` check on mapped object member doesn't narrow correctly, for only some purposes

  #52440 closed Jan 30, 2023

• Immediately-executed callback function not considered when refining type.

  #52471 closed Jan 30, 2023

• Property 'contentVisibility' does not exist on type 'CSSStyleDeclaration'.

  #52497 closed Jan 30, 2023

• [5.0] Unable to explicitly write type annotation for constant used as enum initializer

  #52510 closed Jan 30, 2023

• Apply stricter rules on return type in Object.assign

  #52511 closed Jan 30, 2023

• Report unnecessary calls to Number() constructor when type is a number already

  #52352 closed Jan 30, 2023

• JSX comments break Transformer API in TS 5.0 beta

  #52479 closed Jan 30, 2023

• Tighter parameter decorator checking with `--experimentalDecorators`

  #52435 closed Jan 29, 2023

• Validation of variable is not undefined doesn't work if it's not done directly inside if statement

  #52429 closed Jan 29, 2023

• [Feature Suggestion] File satisfies interface

  #52487 closed Jan 29, 2023

• This expression is not callable for ESM consuming CJS with default export

  #52086 closed Jan 28, 2023

• Higher Order Instantiation Expressions don't resolve types correctly

  #52035 closed Jan 28, 2023

• Template Literal Types with fixed or limited Length

  #52243 closed Jan 28, 2023

• TS2678 Enum "not comparable" but equal

  #52407 closed Jan 28, 2023

• Parameter types checked while shadowing a static method

  #52408 closed Jan 28, 2023

• WebGL extensions typings not available

  #39655 closed Jan 28, 2023

• Type changes not detected in composite mode

  #51648 closed Jan 27, 2023

• FileWatcher ignores files.watcherExclude in Visual Studio Code - Insiders, with nightly TS

  #52383 closed Jan 27, 2023

• Typo in diagnostic message for file exists

  #52462 closed Jan 27, 2023

• An 'export default' must reference a value when 'verbatimModuleSyntax' is enabled, but export is a value

  #52446 closed Jan 27, 2023

• Static properties are not correctly transpiled when using decorators and target ES2022

  #52258 closed Jan 27, 2023

• Deep intersections stopped working in 4.9

  #52397 closed Jan 27, 2023

• Can’t assign to member of type that uses generic parameter, though member is assignable to same type

  #52441 closed Jan 27, 2023

• `never` fails when return type of method and not a function

  #52413 closed Jan 27, 2023

• Deleted source file not detected in composite mode

  #51866 closed Jan 27, 2023

• Some syntactic diagnostic errors erroneously reported as semantic

  #52011 closed Jan 27, 2023

• Key type not properly infered by `Object.entries` for Records

  #52260 closed Jan 27, 2023

• Missing types on DOM HTMLMediaElement with experimental web platform turned on

  #52436 closed Jan 26, 2023

• Assignment to object member requires all attributes of all possible members

  #52420 closed Jan 26, 2023

• Generic type with type variable is narrowed for arguments in a function call, but not in conditionals inside the function body

  #52327 closed Jan 26, 2023

• Factory closure constructor inferring type act like "not sure" or "confused"

  #52245 closed Jan 26, 2023

• Callback parameter inference using inferred generic fails within mapped type intersection argument

  #52269 closed Jan 26, 2023

• Errors not reported when signature help is active

  #52369 closed Jan 26, 2023

• Typescript never fails on the wrong field of a partial type object with predefined keys.

  #52371 closed Jan 26, 2023

• Add a setting for always including the file extension in import suggestions and autoimports

  #52378 closed Jan 26, 2023

• Types that are found, but not exported in package.json, should still be usable

  #52363 closed Jan 26, 2023

• [Resolved] Accessing a property of an object with index signatures should be inferred as possibly undefined

  #52425 closed Jan 26, 2023

• Conditional type on union function is not applied uniformly

  #52265 closed Jan 26, 2023

• type is too wide after check (Element implicitly has an 'any' type because expression of type 'string' can't be used to index type)

  #52311 closed Jan 26, 2023

• OffscreenCanvasRenderingContext2D should not be constructable

  #52416 closed Jan 25, 2023

• narrowingDestructuring test missing a 'typeof' operator

  #52410 closed Jan 25, 2023

• Provide `lib`/`target` suggestions for `findLast`/`findLastIndex`

  #52220 closed Jan 25, 2023

• Variable implicitly has type 'any' in some locations where its type cannot be determined in 5.0

  #52401 closed Jan 25, 2023

• Do not issue ` Left side of comma operator is unused and has no side effects` error on `(0, expr)` this-removing pattern

  #48163 closed Jan 25, 2023

• JSDoc code fixes for arrow-function initialized `const` duplicates comment

  #52386 closed Jan 25, 2023

• Generic return type seems to be inferred correctly but report an error

  #52147 closed Jan 25, 2023

• error TS2351: This expression is not constructable. (AJV with TypeScript)

  #52400 closed Jan 25, 2023

• Intersection of enum union with literal is unexpectedly `never`

  #21998 closed Jan 24, 2023

• Public compiler api only has way to set localized messages for language service and not in general

  #51239 closed Jan 24, 2023

• Convert to async refactoring loses type annotations

  #52391 closed Jan 24, 2023

• `Array.filter` does not properly narrow down type

  #52247 closed Jan 24, 2023

• Unexpected `satisfies` behavior with JSX props.

  #52395 closed Jan 24, 2023

• Proposal: Supplementing Implicit Types

  #19550 closed Jan 24, 2023

69 Issues opened by 46 people

• Better auto import piority

  #52533 opened Jan 31, 2023

• Type inference for declared enum member assignment

  #52531 opened Jan 31, 2023

• null checks not working with `&&false`

  #52530 opened Jan 31, 2023

• ESM import mistakenly reported as prospect requires when importing types

  #52529 opened Jan 31, 2023

• Get the type of the call signature from a literal object

  #52528 opened Jan 31, 2023

• Enable auto imports and add missing import for module/package names

  #52527 opened Jan 31, 2023

• Extract to function uses overly generic return type

  #52520 opened Jan 30, 2023

• JSDoc Comment Template not provided when unrelated JSDoc with tag exists

  #52517 opened Jan 30, 2023

• Generic with default type incorrectly constraint suggestions in code completion

  #52516 opened Jan 30, 2023

• `@overload` Tags do not receive noImplicitAny errors on missing return types

  #52514 opened Jan 30, 2023

• Organize Imports should group package.json `imports` with local path ones

  #52515 opened Jan 30, 2023

• Error in 'addImportFromExportedSymbol' during 'getCodeFixes'

  #52509 opened Jan 30, 2023

• Error in 'stopWatchFailedLookupLocationOfResolution' during 'updateOpen'

  #52508 opened Jan 30, 2023

• Error in 'getDocumentRegistryEntry' during 'encodedSemanticClassifications-full'

  #52507 opened Jan 30, 2023

• Error in 'deleteNodeInList' during 'getCodeFixes'

  #52506 opened Jan 30, 2023

• Error in 'realPath' during 'encodedSemanticClassifications-full'

  #52505 opened Jan 30, 2023

• Error in 'consumeTokenAndAdvanceScanner' during 'getCodeFixes'

  #52504 opened Jan 30, 2023

• Error in 'isExtendedByInterface' during 'getCodeFixes'

  #52503 opened Jan 30, 2023

• Error in 'getPos' during 'getCodeFixes'

  #52502 opened Jan 30, 2023

• Error in '<anonymous>' during 'completionInfo'

  #52501 opened Jan 30, 2023

• Error in 'addSyntheticNodes' during 'quickinfo'

  #52500 opened Jan 30, 2023

• Error in 'isTypeReferenceNode' during 'completionEntryDetails'

  #52499 opened Jan 30, 2023

• Error in 'getDocumentRegistryEntry' during 'encodedSemanticClassifications-full'

  #52498 opened Jan 30, 2023

• Equivalent Tuple with Rest types not duck-typing properly

  #52496 opened Jan 30, 2023

• Required<...> doesn't work anymore when using --exactOptionalPropertyTypes

  #52494 opened Jan 30, 2023

• Handle `Type parameter 'T' has a circular default.` scenario better

  #52492 opened Jan 30, 2023

• [ServerErrors][TypeScript] 5.0.0-dev.20230129

  #52491 opened Jan 29, 2023

• [ServerErrors][JavaScript] 5.0.0-dev.20230129

  #52490 opened Jan 29, 2023

• Return type of function call incorrectly typed as `unknown`

  #52489 opened Jan 29, 2023

• [NewErrors] 5.0.0-dev.20230129 vs 4.9.4

  #52488 opened Jan 29, 2023

• Revisit void/unknown/undefined interactions

  #52486 opened Jan 29, 2023

• TypeScript with TurboRepo (monorepo) not able to resolve paths

  #52485 opened Jan 29, 2023

• isSourceFileDefaultLibrary does not return true for files loaded from `@typescript/lib-xxx`

  #52480 opened Jan 28, 2023

• Check overloaded function implementation for every overload signature

  #52478 opened Jan 28, 2023

• JSDoc overload syntax introduced in recent PR does not appear to work

  #52477 opened Jan 28, 2023

• Error TS2322: Type 'string' is not assignable to type 'T extends number[] ? string[] : string'.

  #52476 opened Jan 28, 2023

• await Promise.all fails to resolve due to optional chaining in JSX

  #52475 opened Jan 28, 2023

• Design Meeting Notes, 1/27/2023

  #52470 opened Jan 27, 2023

• Design Meeting Notes, 1/25/2023

  #52469 opened Jan 27, 2023

• Internal compiler error: "DataCloneError: Function object could not be cloned."

  #52463 opened Jan 27, 2023

• verbatimModuleSyntax not work with namespace at top level

  #52461 opened Jan 27, 2023

• is it possible to make VScode's type suggestions more readable?

  #52512 opened Jan 27, 2023

• Intelli-sense for Node.js subpath imports

  #52460 opened Jan 27, 2023

• TS2590: Expression produces a union type that is too complex to represent - (TS v5.0)

  #52459 opened Jan 27, 2023

• can't assign object when use keyof object type, but uses generic parameter work correctly

  #52458 opened Jan 27, 2023

• Typo in error message TS(2809)

  #52457 opened Jan 27, 2023

• destructuring function props with "enum" as property name breaks .d.ts

  #52455 opened Jan 27, 2023

• Nicer object destructuring in function declarations

  #52454 opened Jan 27, 2023

• TS 5.0 internal compiler error: "Debug Failure. Expected 20 <= 19"

  #52449 opened Jan 27, 2023

• Coercion from {} to object is unsound

  #52447 opened Jan 27, 2023

• "... is a type and must be imported using a type-only import ..." should have a quick fix

  #52444 opened Jan 27, 2023

• Regression: constructor accessor not allowed on plain objects

  #52443 opened Jan 26, 2023

• Function overloading merging implementation signatures

  #52442 opened Jan 26, 2023

• Non-null assertion should work on possibly-uninitialized auto-typed `let` variables

  #52439 opened Jan 26, 2023

• Allow a union of libraries, for code that runs in multiple environments

  #52433 opened Jan 26, 2023

• Type variable not inferred correctly unless unused declaration is provided

  #52432 opened Jan 26, 2023

• [NewErrors] 5.0.0-dev.20230126 vs 4.9.4

  #52431 opened Jan 26, 2023

• Assertion type function not working as expected with everything but ES3 since >=4.9.4

  #52430 opened Jan 26, 2023

• Fail compile when module is Node16/NodeNext while moduleResolution is Node

  #52428 opened Jan 26, 2023

• Return types fail to emit for methods of anonymous plain objects

  #52415 opened Jan 25, 2023

• "Convert to named function" breaks on concise return of async function

  #52418 opened Jan 25, 2023

• Guidance needed: how to configure tooling to use .js file extension in TypeScript imports

  #52412 opened Jan 25, 2023

• imports: display completions to files with extensions from ambient modules

  #52409 opened Jan 25, 2023

• Intellisense for Typescript in VisualStudio is badly broken

  #52405 opened Jan 25, 2023

• Code fails on union when it works fine with both members

  #52402 opened Jan 25, 2023

• Cannot select object type from wrapping object using parameter

  #52399 opened Jan 24, 2023

• Support for comments inside JSDoc @example comments

  #52398 opened Jan 24, 2023

• Typescript Unable to resolve signature of parameter of decorator in vscode

  #52396 opened Jan 24, 2023

• `satisfies` changes the generic type, "resolves" it immediately

  #52394 opened Jan 24, 2023

134 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.

• Consistently propagate `intersectionState` in relations

  #52392 commented on Jan 31, 2023 • 30 new comments

• Fix(50161): Instantiation expressions trigger incorrect error messages

  #52373 commented on Jan 30, 2023 • 18 new comments

• Normalize generic tuple types with `Simplifiable` elements

  #52385 commented on Jan 28, 2023 • 16 new comments

• Experiment short-circuiting of union distribution

  #50640 commented on Jan 27, 2023 • 15 new comments

• chore: disallows unicode escape sequence

  #48609 commented on Jan 24, 2023 • 14 new comments

• Avoid excess property check for inference blocked source

  #52393 commented on Jan 28, 2023 • 12 new comments

• convert JSDoc typedef to type, issue 50644

  #51430 commented on Jan 30, 2023 • 11 new comments

• Feedback: 5.0 deprecations

  #51909 commented on Jan 31, 2023 • 10 new comments

• Use eslint-plugin-simple-import-sort

  #52090 commented on Jan 27, 2023 • 9 new comments

• "moduleResolution": "NodeNext" throws ESM related errors

  #50058 commented on Jan 26, 2023 • 8 new comments

• Run tests on all OSs

  #52350 commented on Jan 31, 2023 • 7 new comments

• Performance regression from #48044

  #52345 commented on Jan 28, 2023 • 6 new comments

• JSDoc comment for destructuring param: description text not displayed

  #24746 commented on Jan 30, 2023 • 5 new comments

• TypeScript 5.0 Iteration Plan

  #51362 commented on Jan 31, 2023 • 5 new comments

• [experiment] direct imports

  #51590 commented on Jan 27, 2023 • 5 new comments

• Instance methods on inferred type instances which return never don't trigger unreachable code

  #50363 commented on Jan 27, 2023 • 4 new comments

• Strict null checks for Map members

  #9619 commented on Jan 29, 2023 • 4 new comments

• Have hover tooltips show instantiated / computed types when selection is multiple characters

  #48884 commented on Jan 30, 2023 • 3 new comments

• Provide snippet completions for `@param` in JSDoc

  #52370 commented on Jan 30, 2023 • 3 new comments

• import ConstJson from './config.json' as const;

  #32063 commented on Jan 31, 2023 • 3 new comments

• Add support for URI style import

  #35749 commented on Jan 31, 2023 • 3 new comments

• Type annotations for default export

  #13626 commented on Jan 31, 2023 • 3 new comments

• JSDoc comment parsing supports multiline backticks

  #50677 commented on Jan 30, 2023 • 3 new comments

• fix(51225): Go-to-definition on case or default should jump to the containing switch statement if available.

  #51236 commented on Jan 30, 2023 • 3 new comments

• Fixed an issue with top function type being callable with no arguments

  #52387 commented on Jan 30, 2023 • 3 new comments

• Object.values and Object.entries are unsound and inconsistent with Object.keys.

  #38520 commented on Jan 25, 2023 • 2 new comments

• vscode stuck on Initializing JS/TS language features on Apple Silicon.

  #51927 commented on Jan 26, 2023 • 2 new comments

• organize import sort order is incorrect

  #52292 commented on Jan 26, 2023 • 2 new comments

• Experiment with removing `originalKeywordKind` from every `Identifier`

  #51496 commented on Jan 26, 2023 • 2 new comments

• Proposal: Partial Type Argument Inference

  #26242 commented on Jan 28, 2023 • 2 new comments

• Case for inference failure in `T extends F<T>`

  #51377 commented on Jan 29, 2023 • 2 new comments

• Allow type narrowing for arrays using Array#forEach and assertion function

  #52389 commented on Jan 29, 2023 • 2 new comments

• Docs are wrong: export = and import = require(), says latter is required incorrectly

  #30976 commented on Jan 30, 2023 • 2 new comments

• Can't write instantiation expression with function operand of lookup type from module import

  #52248 commented on Jan 31, 2023 • 2 new comments

• Pressing dot breaks jsx

  #52288 commented on Jan 31, 2023 • 2 new comments

• Remove line/col for all lib file diagnostics in baselines, completions

  #52380 commented on Jan 24, 2023 • 2 new comments

• export default: support inlined unique symbol

  #46139 commented on Jan 24, 2023 • 1 new comment

• Class field initialization order different between target ES2021 and ES2022

  #52331 commented on Jan 24, 2023 • 1 new comment

• Conditionally optional/conditionally readonly properties

  #44261 commented on Jan 24, 2023 • 1 new comment

• @ts-ignore for the block scope and imports

  #19573 commented on Jan 25, 2023 • 1 new comment

• Suggestion: Noninferential type parameter usage

  #14829 commented on Jan 25, 2023 • 1 new comment

• static property inheritance complaining when it shouldn't

  #4628 commented on Jan 25, 2023 • 1 new comment

• `inherit` keyword as shorthand to refer to super class fields and methods.

  #36165 commented on Jan 25, 2023 • 1 new comment

• Spreading tuple into generic/type arguments

  #39648 commented on Jan 25, 2023 • 1 new comment

• Implement a JSDoc @import tag

  #22160 commented on Jan 26, 2023 • 1 new comment

• Support for opting out of jsdoc @typedef exports

  #46011 commented on Jan 26, 2023 • 1 new comment

• Applying a constrained generic with type parameters as the argument type doesn't properly catch constrained fields

  #52309 commented on Jan 26, 2023 • 1 new comment

• `Type 'string' cannot be used to index type 'T'` when indexing a generic function parameter

  #47357 commented on Jan 26, 2023 • 1 new comment

• Easier destructuring with type annotations on binding patterns

  #29526 commented on Jan 26, 2023 • 1 new comment

• Constructor generic types and `this` parameter (TS1092, TS2681)

  #40451 commented on Jan 26, 2023 • 1 new comment

• Slow performance due to unnecessary updateProgram synchronisation

  #52117 commented on Jan 26, 2023 • 1 new comment

• .every() .find() .filter() methods fail with "This expression is not callable." error on union of array types

  #44373 commented on Jan 26, 2023 • 1 new comment

• tsconfig - Ignore errors by ids

  #29950 commented on Jan 27, 2023 • 1 new comment

• KnownKeys<T> breaking change in 4.3.1-rc

  #44143 commented on Jan 27, 2023 • 1 new comment

• Overload causes generic function to loose type specificity

  #52381 commented on Jan 27, 2023 • 1 new comment

• Cannot specify a JSDoc `@overload` signature using the `@type` tag

  #52368 commented on Jan 27, 2023 • 1 new comment

• .includes or .indexOf does not narrow the type

  #36275 commented on Jan 27, 2023 • 1 new comment

• TS2532 Compound null check, object cannot be undefined

  #35260 commented on Jan 27, 2023 • 1 new comment

• Bug: incorrect tuple (array) type after changing in place

  #52375 commented on Jan 28, 2023 • 1 new comment

• Relate control flow to conditional types in return types

  #33912 commented on Jan 28, 2023 • 1 new comment

• Support a way to export `type X` and `* as X` as namespace with values and types

  #51975 commented on Jan 28, 2023 • 1 new comment

• (Almost) arbitrary functions are assignable to an assertion-function-typed variable

  #49262 commented on Jan 28, 2023 • 1 new comment

• Do not check in the `transpileModule` API

  #50699 commented on Jan 29, 2023 • 1 new comment

• TS functionality keeps dying on large project

  #44951 commented on Jan 29, 2023 • 1 new comment

• Uninitialized variables work around strictNullChecks (follow-up to #13884)

  #23305 commented on Jan 29, 2023 • 1 new comment

• Feature Request: "extends oneof" generic constraint; allows for narrowing type parameters

  #27808 commented on Jan 29, 2023 • 1 new comment

• Types defining `Symbol.hasInstance` should be eligible to use with the `instanceof` operator

  #39064 commented on Jan 29, 2023 • 1 new comment

• Disable type checking for node_modules entirely

  #40426 commented on Jan 30, 2023 • 1 new comment

• Allow tsconfig.yaml in addition to tsconfig.json

  #40027 commented on Jan 30, 2023 • 1 new comment

• Make it possible to pass rootDirs and paths via cli

  #49434 commented on Jan 30, 2023 • 1 new comment

• Extra check in expression cause invalid type narrowing

  #47346 commented on Jan 30, 2023 • 1 new comment

• Allow intersection type guards for multiple parameters

  #26916 commented on Jan 30, 2023 • 1 new comment

• Error in 'makeChange' during 'getCodeFixes'

  #48249 commented on Jan 30, 2023 • 1 new comment

• Error in 'ProjectService.assignProjectToOpenedScriptInfo' during 'updateOpen'

  #48351 commented on Jan 30, 2023 • 1 new comment

• Error in 'getErrorSpanForNode' during 'completionInfo'

  #47768 commented on Jan 30, 2023 • 1 new comment

• Error in 'createTextSpan' during 'getCodeFixes'

  #47886 commented on Jan 30, 2023 • 1 new comment

• TypeError: Cannot read property 'kind' of undefined in 'assignParameterType' during 'encodedSemanticClassifications-full'

  #38064 commented on Jan 30, 2023 • 1 new comment

• TypeError: Cannot read property 'kind' of undefined in 'Object.isModuleBlock' during 'navtree'

  #38065 commented on Jan 30, 2023 • 1 new comment

• Error in 'walk' during 'getCodeFixes'

  #48352 commented on Jan 30, 2023 • 1 new comment

• Error in 'isOuterExpression' during 'getCodeFixes'

  #48251 commented on Jan 30, 2023 • 1 new comment

• Error in 'checkChangeRange' during 'encodedSemanticClassifications-full'

  #48254 commented on Jan 30, 2023 • 1 new comment

• Error in 'getValidSourceFile' during 'provideInlayHints'

  #48360 commented on Jan 30, 2023 • 1 new comment

• Error in 'getDeclaredTypeOfSymbol' during 'encodedSemanticClassifications-full'

  #48255 commented on Jan 30, 2023 • 1 new comment

• Error in 'isObjectBindingPattern' during 'getCodeFixes'

  #48349 commented on Jan 30, 2023 • 1 new comment

• Imports in .d.ts files break wildcard modules declarations

  #28097 commented on Jan 30, 2023 • 1 new comment

• "The inferred type of X cannot be named without a reference to Y" (TS2742) occurs when multiple modules with the same package ID are resolved

  #47663 commented on Jan 30, 2023 • 1 new comment

• Permit type alias declarations inside a class

  #7061 commented on Jan 30, 2023 • 1 new comment

• Proposal: new "invalid" type to indicate custom invalid states

  #23689 commented on Jan 30, 2023 • 1 new comment

• [i18n] Intl getCanonicalLocales / RelativeTimeFormat / ListFormat > 2339 error

  #29129 commented on Jan 30, 2023 • 1 new comment

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

  #21699 commented on Jan 31, 2023 • 1 new comment

• Declaration merging can be inconsistent

  #41116 commented on Jan 31, 2023 • 1 new comment

• Consider deprecating namespaces declared with the `module` keyword

  #51825 commented on Jan 31, 2023 • 1 new comment

• Support change-array-by-copy tc39 proposal

  #50333 commented on Jan 31, 2023 • 1 new comment

• Always respect preserveSymlinks

  #51842 commented on Jan 26, 2023 • 1 new comment

• Dependent arguments assignability to overloaded functions

  #52303 commented on Jan 24, 2023 • 0 new comments

• Add an option to ignore type checking for certain files

  #52325 commented on Jan 24, 2023 • 0 new comments

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

  #52313 commented on Jan 24, 2023 • 0 new comments

• Missing error on overloaded methods with mismatched computed named

  #52329 commented on Jan 24, 2023 • 0 new comments

• Error when variadic elements generated by generic type and other value make an array

  #52354 commented on Jan 24, 2023 • 0 new comments

• Broken double inference step in variadic tuple types when rest elements come into play

  #52017 commented on Jan 24, 2023 • 0 new comments

• VSCode "go to definition" in TypeScript goes to node_modules instead of resolving symlink

  #52082 commented on Jan 24, 2023 • 0 new comments

• Import the latest changes from `typescript-DOM-lib-generator` repo to make the latest APIs available

  #52025 commented on Jan 24, 2023 • 0 new comments

• Casing is not preserved when compiling `<reference path="...">` triple slash directives

  #52110 commented on Jan 26, 2023 • 0 new comments

• `getSignaturesOfType` throws `Cannot read property 'flags' of undefined`

  #33829 commented on Jan 27, 2023 • 0 new comments

• Fix documentation that seems to imply `baseUrl` does something it doesn't

  #51267 commented on Jan 30, 2023 • 0 new comments

• Class member snippets should probably not have a lower priority than keywords

  #52121 commented on Jan 30, 2023 • 0 new comments

• TypeScript 4.5 Iteration Plan

  #45418 commented on Jan 31, 2023 • 0 new comments

• TypeScript 4.6 Iteration Plan

  #46858 commented on Jan 31, 2023 • 0 new comments

• TypeScript 4.8 Iteration Plan

  #49074 commented on Jan 31, 2023 • 0 new comments

• TypeScript 4.9 Iteration Plan

  #50457 commented on Jan 31, 2023 • 0 new comments

• JSDoc support for object literal fields

  #290 commented on Jan 31, 2023 • 0 new comments

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

  #11920 commented on Jan 31, 2023 • 0 new comments

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

  #33471 commented on Jan 31, 2023 • 0 new comments

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

  #39114 commented on Jan 31, 2023 • 0 new comments

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

  #39650 commented on Jan 31, 2023 • 0 new comments

• Class Property Inference from Constructors fails for a simple object declared in place

  #39681 commented on Jan 31, 2023 • 0 new comments

• Hoisted function declarations should be assigned to `exports` before any `require` calls

  #39853 commented on Jan 31, 2023 • 0 new comments

• Unexpected behavior (possible bug)

  #39970 commented on Jan 31, 2023 • 0 new comments

• Support “Arbitrary module namespace identifier names”

  #40594 commented on Jan 31, 2023 • 0 new comments

• Using an optional call with `.flat()` produces incorrect types

  #41007 commented on Jan 31, 2023 • 0 new comments

• Compile error if I named last array destructuring element.

  #41548 commented on Jan 31, 2023 • 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 Jan 31, 2023 • 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 Jan 31, 2023 • 0 new comments

• `\u` in String.raw

  #42887 commented on Jan 31, 2023 • 0 new comments

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

  #46791 commented on Jan 31, 2023 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented on Jan 31, 2023 • 0 new comments

• Regression causes Function top-type to be callable with no arguments

  #48840 commented on Jan 31, 2023 • 0 new comments

• [NewErrors] 4.8.0-dev.20220609 vs 4.7.3

  #49460 commented on Jan 31, 2023 • 0 new comments

• Type tuples no longer inferred properly from rest arguments with mapped generic type tuples.

  #49556 commented on Jan 31, 2023 • 0 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented on Jan 31, 2023 • 0 new comments

• Types declared in types.d.ts not included in output of tsc --emitDeclarationOnly

  #51784 commented on Jan 31, 2023 • 0 new comments

• Intersection types not merged in 4.9.4

  #52252 commented on Jan 31, 2023 • 0 new comments

• ATA for tsserver on web

  #46862 commented on Jan 31, 2023 • 0 new comments

• Infer instance type arguments as constraint

  #49863 commented on Jan 30, 2023 • 0 new comments