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

To use the intersection function from the underscore library in typescript, first, you need to install underscore.js using npm:

npm install underscore
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Then, in your typescript file, import the intersection function from the underscore library and use it as follows:

index.ts
import { intersection } from 'underscore';

const array1 = [1, 2, 3, 4, 5];
const array2 = [3, 4, 5, 6, 7];
const result = intersection(array1, array2);

console.log(result); // Output: [3, 4, 5]
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In this example, we first import the intersection function from the underscore library. We then declare two arrays, array1 and array2, and populate them with some data. We then pass these two arrays as arguments to the intersection function, which returns a new array with elements that are common to both input arrays. Finally, we console.log the result to check that it matches our expectations.