/**
 * #learnjs
 * Find and remove an element from an array #learnjs
 */
Array.prototype.remove = function (item) {
  var pos = this.indexOf(item);
  if (pos != -1) {
    this.splice(pos, 1);
  }
}
['one', 'two', 'three', 'four', 'five'].remove('three');
// result = ['one', 'two', 'four', 'five']