javascript - How to sort an array by an array of integers in JS?

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65900905/how-to-sort-an-array-by-an-array-of-integers-in-js

Answer 1

You can map your array of indexes to their corresponding values from your name array using .map():

const names = ['John', 'Paul', 'George', 'Ringo'] 
const nums = [3, 1, 2, 0];
const res = nums.map(i => names[i]);
console.log(res);