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

To use the initial function from the Underscore library in TypeScript, first install the Underscore library using npm:

index.ts
npm install underscore
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Then, import the initial function from the Underscore library in your TypeScript file:

index.ts
import { initial } from 'underscore';
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You can now use the initial function in your TypeScript code:

index.ts
const numbers: number[] = [1, 2, 3, 4, 5];
const allButLast: number[] = initial(numbers);
console.log(allButLast); // Output: [1, 2, 3, 4]
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Note that if you're using TypeScript with Underscore.js, it's recommended to also install the type declarations for Underscore:

index.ts
npm install @types/underscore
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This provides TypeScript with information about the types and functions available in Underscore, making it easier to use in your code.