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Duplicates finder

Nov 28th, 2022
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  1. function duplicates(arr) {
  2.     const dupsItems = [];
  3.     for(let i = 0; i < arr.length; i++) {
  4.       for(let j = i + 1; j < arr.length; j++) {
  5.         if(arr[i] === arr[j]) {
  6.           dupsItems.push(arr[i]);
  7.         }
  8.       }
  9.     }
  10.  
  11.     return [dupsItems.length, dupsItems];
  12.   }
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