Write a JavaScript program to find the number of elements which presents in both of the given arrays

function test_same_elements_both_arrays(arra1, arra2) {
  var result = 0;
  for(var i = 0; i < arra1.length; i++) {
    for(var j = 0; j < arra2.length; j++){
      if(arra1[i] === arra2[j])
      {
        result++;
      }
    }
  }
  return result;
}
console.log(test_same_elements_both_arrays([1,2,3,4], [1,2,3,4]));
console.log(test_same_elements_both_arrays([1,2,3,4], [1,2,3,5]));
console.log(test_same_elements_both_arrays([1,2,3,4], [11,22,33,44]));