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

To use the partial function from the Underscore.js library in TypeScript, you can start by installing underscore via npm:

npm install underscore
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Then, in your TypeScript file, you can import the partial function from underscore:

index.ts
import { partial } from 'underscore';
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Now you can use the partial function to partially apply arguments to a function. For example, let's say you have a function that takes two arguments:

index.ts
function add(a: number, b: number): number {
  return a + b;
}
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You can use partial to create a new function that always adds 1 to its argument:

index.ts
const addOne = partial(add, 1);
console.log(addOne(2)); // 3
console.log(addOne(3)); // 4
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In this example, addOne is a new function that takes one argument and always adds 1 to it. The first argument to partial is the function to partially apply, and the subsequent arguments are the arguments that should be applied to the function.

Note that the partial function in Underscore.js is similar to the bind function in JavaScript, but with some differences in how arguments are applied.