Answers for "js randomize array"

11

how to randomly sort an array javascript

array.sort(() => Math.random() - 0.5);
Posted by: Guest on May-29-2021
14

js shuffle array

yourArray.sort(function() { return 0.5 - Math.random() });
Posted by: Guest on April-03-2020
1

javascript shuffle an array

const shuffleArray = (arr) => arr.sort(() => 0.5 - Math.random());

console.log(shuffleArray([1, 2, 3, 4]));
// Result: [ 1, 4, 3, 2 ]
Posted by: Guest on September-28-2021
3

how to shuffle an array javascript

/**
 * Shuffles array in place.
 * @param {Array} a items An array containing the items.
 */
function shuffle(a) {
    var j, x, i;
    for (i = a.length - 1; i > 0; i--) {
        j = round(random() * (i + 1));
        x = a[i];
        a[i] = a[j];
        a[j] = x;
    }
    return a;
}

shuffle(array);
Posted by: Guest on September-25-2020
13

javascript randomly shuffle array

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"]
Posted by: Guest on July-24-2019
2

javascript random sort array

// 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]];
    }
}
Posted by: Guest on October-01-2020

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