es-toolkit

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A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

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TypeScript

import { Equals } from "./Equals.js"; //#region src/compat/_internal/IsWritable.d.ts type IsWritable<T> = Equals<{ [K in keyof T]: T[K] }, { -readonly [K in keyof T]: T[K] }>; //#endregion export { IsWritable };