function shuffle(array) {

  let currentIndex = array.length,  randomIndex;

​

  // While there remain elements to shuffle.

  while (currentIndex != 0) {

​

    // Pick a remaining element.

    randomIndex = Math.floor(Math.random() * currentIndex);

    currentIndex--;

​

    // And swap it with the current element.

    [array[currentIndex], array[randomIndex]] = [

      array[randomIndex], array[currentIndex]];

  }

​

  return array;

}

​

// Used like so

var arr = [2, 11, 37, 42];

shuffle(arr);

console.log(arr);

 Run code snippetHide results

array.sort(() => Math.random() - 0.5);

function randomArrayShuffle(array) {

  var currentIndex = array.length, temporaryValue, randomIndex;

  while (0 !== currentIndex) {

    randomIndex = Math.floor(Math.random() * currentIndex);

    currentIndex -= 1;

    temporaryValue = array[currentIndex];

    array[currentIndex] = array[randomIndex];

    array[randomIndex] = temporaryValue;

  }

  return array;

}

var alphabet=["a","b","c","d","e"];

randomArrayShuffle(alphabet); 

//alphabet is now shuffled randomly = ["d", "c", "b", "e", "a"]

​

​

​

const array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

const shuffledArray = array.sort((a, b) => 0.5 - Math.random());

// O(n)

function shuffleArray(array) {

    for (let i = array.length - 1; i > 0; i--) {

        const j = Math.floor(Math.random() * (i + 1));

        [array[i], array[j]] = [array[j], array[i]];

    }

}

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

};

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)

​

function shuffle(array) {

  let currentIndex = array.length,  randomIndex;

​

  // While there remain elements to shuffle...

  while (currentIndex != 0) {

​

    // Pick a remaining element...

    randomIndex = Math.floor(Math.random() * currentIndex);

    currentIndex--;

​

    // And swap it with the current element.

    [array[currentIndex], array[randomIndex]] = [

      array[randomIndex], array[currentIndex]];

  }

​

  return array;

}

​

// Used like so

var arr = [2, 11, 37, 42];

shuffle(arr);

console.log(arr);

var demo = document.getElementById("demo");

var fruits = [

"Apple",

"Orange",

"Mango",

"Grapes",

"Banana",

];

​

demo.innerHTML = fruits[Math.floor(Math.random() * fruits.length)];