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Excess property check not working with certain intersections

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49520 In microsoft/TypeScript;

· by ahejlsberg was closed on Jun 13, 2022

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TypeScript 4.8.0

Protected field with same name in two classes messing up type constraint when narrowing array.

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Has ReproThis issue has compiler-backed repros: https://aka.ms/ts-reprosThis issue has compiler-backed repros: https://aka.ms/ts-repros

Status: Closed (completed).

#49517 In microsoft/TypeScript;

· by Jym77 was closed on Sep 20, 2022

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TypeScript 4.8.0

Plain JS files don't issue error on <code>await</code> inside non-async function

BugA bug in TypeScriptA bug in TypeScript

checkJsRelates to checking JavaScript using TypeScriptRelates to checking JavaScript using TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49483 In microsoft/TypeScript;

· by sandersn was closed on Jun 14, 2022

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TypeScript 4.8.0

Regression - default initializer of <code>{}</code> ruins type intersected with <code>object</code>

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Has ReproThis issue has compiler-backed repros: https://aka.ms/ts-reprosThis issue has compiler-backed repros: https://aka.ms/ts-repros

Status: Closed (completed).

#49480 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Jun 13, 2022

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TypeScript 4.8.0

bug: using package exports fields can result in incompatible types for identical types

ExternalRelates to another program, environment, or user action which we cannot control.Relates to another program, environment, or user action which we cannot control.

Status: Closed (completed).

#49466 In microsoft/TypeScript;

· by EisenbergEffect was closed on Jun 13, 2022

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TypeScript 4.8.0

Definite assignment checking confused by <code>x !== null</code> check

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49386 In microsoft/TypeScript;

· by ahejlsberg was closed on Jun 6, 2022

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TypeScript 4.8.0

Debug Failure. Parameter symbol already has a cached type which differs from newly assigned type.

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49383 In microsoft/TypeScript;

· by denis-sokolov was closed on Jul 6, 2022

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TypeScript 4.8.0

Instantiation expressions not allowed in logical/coalescing expressions

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49362 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Jun 10, 2022

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TypeScript 4.8.0

Syntax Error for <code>let</code> var declaration under semicolon-less instantiation expressions

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49348 In microsoft/TypeScript;

· by sosukesuzuki was closed on Jun 10, 2022

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TypeScript 4.8.0

Nightly - <code>typeof x == "function"</code> does not always work as typeguard to remove a Record type from a union

BugA bug in TypeScriptA bug in TypeScript

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Closed (completed).

#49316 In microsoft/TypeScript;

· by phryneas was closed on Jun 4, 2022

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TypeScript 4.8.0

ESM only monorepo w/project references error without <code>main</code> fallback

DocsThe issue relates to how you learn TypeScriptThe issue relates to how you learn TypeScript

Domain: Node ESMLike ES Modules, but specific to Node.js support (cts, cts, mjs, mts)Like ES Modules, but specific to Node.js support (cts, cts, mjs, mts)

Status: Closed (completed).

#49266 In microsoft/TypeScript;

· by rosskevin was closed on Jun 2, 2022

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TypeScript 4.8.0

Crash when find-all-references/rename finds no references

BugA bug in TypeScriptA bug in TypeScript

CrashFor flagging bugs which are compiler or service crashes or unclean exits, rather than bad outputFor flagging bugs which are compiler or service crashes or unclean exits, rather than bad output

Domain: Symbol NavigationRelates to go-to-definition, find-all-references, highlighting/occurrences.Relates to go-to-definition, find-all-references, highlighting/occurrences.

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Status: Closed (completed).

#49217 In microsoft/TypeScript;

· by DanielRosenwasser was closed on May 26, 2022

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TypeScript 4.8.0