how to use the isweakset function from the underscore library in typescript

To use the isWeakSet function from the Underscore library in TypeScript, you need to first install the library using a package manager like NPM or Yarn. Assuming you're using NPM, you can install it with the following command:

index.ts
npm install underscore
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Then, you can import the isWeakSet function like this:

index.ts
import { isWeakSet } from 'underscore';
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Finally, you can use the isWeakSet function to check if a given value is a WeakSet. Here's an example:

index.ts
const myWeakSet = new WeakSet();
const mySet = new Set();

console.log(isWeakSet(myWeakSet)); // true
console.log(isWeakSet(mySet)); // false
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Note that the isWeakSet function is already typed in the Underscore library, so you don't need to install any additional typing packages.