Created
August 25, 2017 18:49
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| function hasDuplicates(arr) { | |
| var exists = {}; | |
| for(var i = 0; i < arr.length; i++) | |
| if(exists[arr[i]]) | |
| return true; | |
| else | |
| exists[arr[i]] = true; | |
| return false; | |
| } |
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