Created
July 5, 2018 06:28
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| var arr = [1, 2, 3, 4, 5, 1, 2, 3, 4, 7, 8, 7, 1, 2, 3] | |
| var finalArr = [] | |
| arr.forEach(function (element, index) { | |
| if(arr.indexOf(element, index + 1) > -1) { | |
| finalArr.push(element) | |
| } | |
| }) | |
| console.log(finalArr) |
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