Javascript String compareTo(other)

String.prototype.compareTo = function(other) {
 if (this < other)
  return -1;//from   ww  w . ja va  2 s  .c om
 if (other < this)
  return 1;
 return 0;
}
var globalVar;
String.prototype.foo = function() {
 globalVar = this;
}


var z = "foo".compareTo("bar");

var w = "foo".toString();

var str = "foo";
str.toString();

"baz".foo();

//var w = new String("foo").compareTo("bar");