hi,
My challenge doesn’t work because the cast:
function diffArray(arr1,arr2) {
var arr=[],
out=[],
counts={};
//concat the two array
arr = arr1.concat(arr2);
for (var i=0, len=arr.length;i<len;i++) {
var item = arr[i];
//insert each item in the properties object counts
counts[item] = (counts[item] >= 1) ? counts[item] + 1 : 1;
}
for (var key in counts) {
//loop in the object
if (counts[key] === 1) {
//create an array with all the value with 1
out.push(key);
}
}
console.log(out);
// loop the final tab to cast the number in the string to a number
for (var j = 0, lon = out.length; j < lon; j++) {
var num = out[j];
if (!isNaN(num)) {
console.log(num);
parseInt(num);
//console.log(parseInt(counts[key]) + ': ' +key);
}
}
console.log(out);
return out;
}
diffArray([1, 2, 3, 5], [1, 2, 3, 4, 5]);
is return [“4”] and it expect [4]
Thanks
