Call string functions in MooTools

call_string_functions

String.implement({
  attempt: function() {
    var parts = this.split('.'), len = parts.length;
    var func = window, bind;
    for (var i=0; i<len; i++) {
      if (func.hasOwnProperty(parts[i])) {
        bind = func;
        func = func[parts[i]];
      }
    }
    if (typeOf(func) == 'function') {
      return func.apply(bind, arguments);
    }
    return null;
  }
});

/* Usage */
obj1 = {
  obj2: {
    obj3: {
      func: function(a, b) {
        return a + b;
      }
    }
  }
}

alert( 'obj1.obj2.obj3.func'.attempt(1, 2) ); // "3"