diff two arrays of freecodecamp

diff_two_arrays.js

function diff(arr1, arr2) {
  var newArr = [];
  for(var i=0;i<arr1.length;i++){
  	var check=1;
  	for(j=0;j<arr2.length;j++){
  		if(arr1[i]===arr2[j])
  			check=0;
  	}
  	if(check===1)
  		newArr.push(arr1[i]);
  }
  for(var i=0;i<arr2.length;i++){
  	var check=1;
  	for(j=0;j<arr1.length;j++){
  		if(arr2[i]===arr1[j])
  			check=0;
  	}
  	if(check===1)
  		newArr.push(arr2[i]);
  }  
  return newArr;
}

print(diff([1, 2, 3, 5], [1, 2, 3, 4, 5]));
diff([1, 2, 3, 5], [1, 2, 3, 4, 5]);


function print(s){
	console.log(s);
}