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

3

### 🔎 Search Terms module import commonjs barrel ### 🕗 Version & Regression Information - This is the behavior in every version I tried. Tried 3.3, 5.7.3 and 5.9-nightly. ###...

HolgerJeromin

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

1

If the plugin is enabled before `this.updateRootAndOptionsOfNonInferredProject` and the project service host configuration is changed through `projectService.setHostConfiguration` in the plugin, enabling the plugin will result in a recursive call to...

mlgq

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

12

## Search Terms add a call signature to the Mapped Type; remove all `Function.prototype` methods ## Suggestion Being able to create a callable type, but without Function.prototype methods. ## Use...

anurbol

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

11

# Bug Report ### 🔎 Search Terms TS1379 An import alias cannot reference a declaration that was exported using 'export type' ### 🕗 Version & Regression Information This has always...

EliLichtblau

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

3

## 🔍 Search Terms - global context - enforce global variable ## ✅ Viability Checklist * [x] This wouldn't be a breaking change in existing TypeScript/JavaScript code * [x] This...

UrielCh

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

8

The following errors were reported by 5.9.0-dev.20250309 vs 5.8.2 [Pipeline that generated this bug](https://typescript.visualstudio.com/TypeScript/_build?definitionId=48) [Logs for the pipeline run](https://typescript.visualstudio.com/TypeScript/_build/results?buildId=164912) [File that generated the pipeline](https://github.com/microsoft/typescript-error-deltas/blob/main/azure-pipelines-gitTests.yml) This run considered 300 popular TS...

typescript-bot

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

7

### 🔎 Search Terms optional properties, self types ### 🕗 Version & Regression Information This changed between versions 5.3.3 and 5.4.5 ### ⏯ Playground Link https://www.typescriptlang.org/play/?ts=5.8.2#code/CYUwxgNghgTiAEYD2A7AzgF3gMyUgjAFwBQ88APACLwgAeGIKwa8AYnvlQHxcAUo2AJYpBGQakLxKASngBeLlOLEMATwAOCdgSoAaeACFY8+AAUYSdXvgAiAEawbPeaXgBveA5gkyv9-ABtAGl4YXgAaxBVJGxDWABdHz9koxhg+Jp6RmZPPAgQKBR4AH44tKCMyRsAURgLb09jNAALJABXCGBPBDs8gpQbeFc-AF9XMeJQSFgEZHQsXCQAJiSqTIYmFm0l7j4BYVFxFEkZeUVKZTVNNjwdyn1Uk3NLa3tHZzlXDy9ipL8PYKhIqRaKxVKJYbJMipdLrbIsXpIfKFEplWFVWr1SReeAtdqdbq5JH9QaQshjcmXDQIZ5WAAq+iCik+ZBCdA2ORBMXgdNRdPR8BQIAAbiAYMpFvheN9YJIPAANKoMTCDEbwEbSYgAei1UKhAD1ihLbtLGg0FUqQCr1erNTq9clDcogA ### 💻 Code ```ts...

devanshj

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

2

# Suggestion ## 🔍 Search Terms * generics * polymorphism * type inference ## ✅ Viability Checklist My suggestion meets these guidelines: * [x] This wouldn't be a breaking change...

jsoldi

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

3

The following errors were reported by 5.9.0-dev.20250309 vs 5.8.2 [Pipeline that generated this bug](https://typescript.visualstudio.com/TypeScript/_build?definitionId=48) [Logs for the pipeline run](https://typescript.visualstudio.com/TypeScript/_build/results?buildId=164913) [File that generated the pipeline](https://github.com/microsoft/typescript-error-deltas/blob/main/azure-pipelines-gitTests.yml) This run considered 300 popular TS...

typescript-bot

Array.isArray( ) with readonly []

2

### 🔎 Search Terms Array.isArray( ) ### 🕗 Version & Regression Information - This changed between versions ______ and _______ - This changed in commit or PR _______ - This...

jonlepage