Creation of Methods instance Javascript

Question

I just started working on Javascript project. I know a couple of things

I have one js file called Employee and it has following methods:

AddEmployee
Search Employee
Third Employee

In Java, you access all the methods using object like employeeObj.addEmployee(); I want to achieve same thing in JavaScript. Meaning, I want to access all the methods by creating an employee object?

can you show us what you have so far? Generally if you want a good answer on this site it helps to show that you've put some effort in and to ask a specific question — Ben McCormick, Jun 13 '13 at 15:17
I would suggest doing this small course http://www.codecademy.com/tracks/javascript You probably need chapter 7 and 8 but taking the whole course shouldn't take long and is the suggested way to go. — MrSoundless, Jun 13 '13 at 15:19
It is very hard for us to infer what your code looks like and suggest the correct strategy. Would you mind including some (sample, reduced case) code for that external file? — Benjamin Gruenbaum, Jun 13 '13 at 15:20
possible duplicate of [How to "properly" create a custom object in JavaScript?](http://stackoverflow.com/questions/1595611/how-to-properly-create-a-custom-object-in-javascript) — Ben McCormick, Jun 13 '13 at 15:25

HaBo · Answer 1 · 2013-06-13T15:51:22.440

1

One of the way you can achieve OOP in Javascript

function Foo()
{
    this.x = 1;
}

Foo.prototype.AddX = function(y)    // Define Method
{
    this.x += y;
}

obj = new Foo;

obj.AddX(5);                        // Call Method

you can refer to few online tutorials for that

edited Jun 13 '13 at 15:51

answered Jun 13 '13 at 15:21

HaBo

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Really? _THAT_ is how you do OOP in JavaScript? There are a million ways to do OOP in JavaScript, you have not suggested how you'd solve OP's issue. This is basically just a link to a bunch of tutorials. – Benjamin Gruenbaum Jun 13 '13 at 15:23
@BenjaminGruenbaum Obviously, I suggested One of the way to achieve OO. May be I should rewrite my line. Thanks :) – HaBo Jun 13 '13 at 15:51

score 0 · Answer 2 · answered Jun 13 '13 at 15:23

There are a few ways to create objects in javascript. If you just want a container for your functions the easiest way is to create a simple object with the functions as properties.

var employeeObj = {

  addEmployee: function(){
  },
  searchEmployee: function(){
  },
  thirdEmployee: function() {
  }
};

If you need the object to be able to reference itself during initial set up, you can use a constructor function

var Employee = function() {

}

Employee.prototype.addEmployee = function(){};
Employee.prototype.searchEmployee = function(){};
Employee.prototype.thirdEmployee = function(){};

var employeeObj = new Employee();

In the first option, the object can still reference itself. (you're assigning it to a variable after all. — Benjamin Gruenbaum, Jun 13 '13 at 15:23

Creation of Methods instance Javascript

2 Answers2