given an array arr of integers 2c check if there exists two input

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Alice
15 May 2018
1 var checkIfExist = function(arr) {
2     for(let i=0;i<arr.length;i++){
3         let target = arr[i]
4         for(let j=i+1;j<arr.length;j++){
5             if(target === arr[j]*2 || target === arr[j]/2){
6                 return true
7             }
8         }
9     }
10     return false
11 };
12
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given an array arr of integers 2c check if there exists two inputgiven an array arr of integers 2c check if there exists two input