luan

``` javascript function intersection(arr1,arr2) { var usedArr1 = []; var usedArr2 = []; var result = []; for (var i = 0; i < arr2.length; i++) { var a2 =...

` function add() { var sum = function (arr) { var curSum = 0; for (var i = 0; i < arr.length; i++) { var obj = arr[i]; if(obj){ curSum...