Javascript Array removeElem(elem)

// 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 = [1,2,1,4,1,3,4,1,1,111,3,2,1,'1'];

Array.prototype.removeElem = function (elem) {
 var i, /*from   w  w  w  . j a v a2  s . c o  m*/
  len;

 for (i = 0, len = this.length; i < len; i += 1) {
  if (this[i] === elem) {
   this.splice(i, 1);
   i -= 1;
  };
 };
}

arr.removeElem(1);
console.log(arr);