Class with static methods

[Zebestov]

Hi!

I create some Class (for example GeomUtils) which contains static methods only. Can I define it as Object instead of function?

[sbat]

In JavaScript there are no classes.  

 

So if you mean something like:  

MyModule = {}MyModule.testFunction = function() {}

Then yes, it would work.

 

You may want to google for "module" pattern for more robust implementation in JavaScript (for example, you'll likely want to have private properties/functions as well. 

[Zebestov]

Ok. Thank you for the tip about module pattern.

I understand that private methods should be called like this:

myPrivateMethod.call(this, "arg1", …);

otherwise it will not have access to public and inherited methods?

[sbat]

There are no private and inherited methods in JavaScript either, so it is hard to answer these question precisely. Prototype-based OOP is just different. 

 

To model private functions of the module you would generally use function scope:

MyModule = {};(function () {    MyModule.testFunction = function() {        myPrivateFunction();    }        function myPrivateFunction() {        alert("Private")    }})();MyModule.testFunction();

http://jsfiddle.net/Cfp6V/

 

[Zebestov]

I know that it's actually not classes and inheritance. I'm just looking realization of similar model in javascript.

At the moment I can't find nothing about emulation private instance variables. Examples I found is all about some kind of private static variable one for all instances.