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将一个有序的数组打乱,要求随机。
The text was updated successfully, but these errors were encountered:
function shuffle(arr) { let len = arr.length; let index; while (len > 0) { index = Math.floor(Math.random() * len); len--; [arr[len], arr[index]] = [arr[index], arr[len]]; } return arr; }
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将一个有序的数组打乱,要求随机。
The text was updated successfully, but these errors were encountered: