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Shuffle an Array, array, js

const shuffleArray = (arr) =>
  [...Array(arr.length)]
    .map((_, i) => Math.floor(Math.random() * (i + 1)))
    .reduce(
      (shuffled, r, i) =>
        shuffled.map((num, j) =>
          j === i ? shuffled[r] : j === r ? shuffled[i] : num
        ),
      arr
    );
// [ 2, 4, 1, 3, 5 ] (varies)
console.log(shuffleArray([1, 2, 3, 4, 5]));
Source by stackoverflow.com #
 
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Tagged: #Shuffle #js
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