array-shuffle.js based on https://stackoverflow.com/a/12646864/173630

array-shuffle-immutable.js

/**
 * Shuffle an array without changing the original one
 * @param {any[]} array Any array
 * @returns {any[]} Randomized array
 */
const shuffleArray = array => {
    const a = array.slice()
    for (let i = a.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1))
        [a[i], a[j]] = [a[j], a[i]]
    }
    return a
}