Javascript Array remove(k)

//Problem 2. Remove elements
//    Write a function that removes all elements with a given value.
 //   Attach it to the array type.
//    Read about prototype and how to attach methods.
//var arr = [1,2,1,4,1,3,4,1,111,3,2,1,'1'];
//arr.remove(1); //arr = [2,4,3,4,111,3,2,'1'];

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

Array.prototype.remove = function(k){
 var len = this.length,
 i;//from  w  w w. j  a  v  a 2  s  .  c  o m
 for (i=0; i<len; i++) {
  if (this[i] === k) {
   this.splice(i, 1);
  }

 }
 console.log(this);
};
arr.remove(111);