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Title: Revise mapped tuple type instantiation logic by ahejlsberg · Pull Request #57031 · microsoft/TypeScript · GitHub

Open Graph Title: Revise mapped tuple type instantiation logic by ahejlsberg · Pull Request #57031 · microsoft/TypeScript

X Title: Revise mapped tuple type instantiation logic by ahejlsberg · Pull Request #57031 · microsoft/TypeScript

Description: TypeScript is a superset of JavaScript that compiles to clean JavaScript output. - Revise mapped tuple type instantiation logic by ahejlsberg · Pull Request #57031 · microsoft/TypeScript

Open Graph Description: This PR revises and simplifies our mapped tuple type instantiation logic. Previously, when a mapped type was applied to a variadic tuple type, we'd transform the operation into a sequence of op...

X Description: This PR revises and simplifies our mapped tuple type instantiation logic. Previously, when a mapped type was applied to a variadic tuple type, we'd transform the operation into a sequence o...

Opengraph URL: https://github.com/microsoft/TypeScript/pull/57031

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og:image:altThis PR revises and simplifies our mapped tuple type instantiation logic. Previously, when a mapped type was applied to a variadic tuple type, we'd transform the operation into a sequence of op...
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Readonly<[...unknown[], infer L]> and readonly [...unknown[], infer L] exhibit inconsistent behavior. https://github.com/microsoft/TypeScript/issues/56888
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