Javascript overloading.

overload.js

function overloadMethod(object, name, fn){
     if(!object._overload){
     object._overload = {};
     }

     if(!object._overload[name]){
     object._overload[name] = {};
     }

      if(!object._overload[name][fn.length]){
object._overload[name][fn.length] = fn;
     }

     object[name] = function() {
          if(this._overload[name][arguments.length])
          return this._overload[name][arguments.length].apply(this, arguments);
     };
}

function Students(){
    overloadMethod(this, "find", function(){
          // Find a student by name
     });

     overloadMethod(this, "find", function(first, last){
          // Find a student by first and last name
     });

}

var students = new Students();
students.find(); // Finds all
students.find("Rahul"); // Finds students by name
students.find("Rahul", "Mhatre"); // Finds users by first and last name