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Jan 31st, 2018
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  1. var arr = [1, 2, 3, 4, 5];
  2.  
  3. function compareRandom(a, b) {
  4.   return Math.random() - 0.5;
  5. }
  6.  
  7. arr.sort(compareRandom);
  8.  
  9. alert( arr ); // элементы в случайном порядке, например [3,5,1,2,4]
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