Javascript Array remove(arr, number)

var arr = [1, 2, 1, 4, 1, 3, 4, 1, 111, 3, 2, 1, '1'];


Array.prototype.remove = function(arr, number) {
 var i,// ww w.j a va2s.  c om
  len = arr.length;
 for (i = 0; i < len; i += 1) {
  if (number === arr[i]) {
   arr.splice(i, 1);
  }
 }
 return arr;
};

console.log(arr);
console.log('After using "remove" (1)');
console.log(arr.remove(arr, 1)); 
//arr = [2,4,3,4,111,3,2,'1'];