randomize items in array code example

Example 1: how to randomize an array

const getShuffledArr = arr => {
    const newArr = arr.slice()
    for (let i = newArr.length - 1; i > 0; i--) {
        const rand = Math.floor(Math.random() * (i + 1));
        [newArr[i], newArr[rand]] = [newArr[rand], newArr[i]];
    }
    return newArr
};

Example 2: randomize an array

let unshuffled = ['hello', 'a', 't', 'q', 1, 2, 3, {cats: true}]

let shuffled = unshuffled
  .map((a) => ({sort: Math.random(), value: a}))
  .sort((a, b) => a.sort - b.sort)
  .map((a) => a.value)