Question

I have a few JavaScript files with some jQuery code. I am including this files to the my JavaServerPages files according to needs. I am wondering how can I create object, class or something common in JavaScript, which I can use in another JavaScript files?

I have created something similar to this:

function Util() {

    Util.getString = function() {
        var newString = "hello";
        return newString;
    }
}

It takes place in my basic JavaScript file. I have included it on my basic layout JSP file. I am using it in a jQuery function in another JavaScript file in this way:

var util = new Util(); 
Util.getString();

It works properly. But why can I not use util.getString()? util is my just created object, wright?
What is the best solution to my issue?

Answer 1

You should use prototype of the function, check here.

function Util() {
}

Util.prototype.getString = function() {
    var newString = "hello";
    return newString;
};

var util = new Util(); 
util.getString();