Custom JavaScript Object Example
I was talking about JavaScript objects with someone at work today and I wanted a simple example to look at, but I couldn't find one quickly. So, I decided to write up a quick example and post it here for future reference. I'm also posting some links to helpful information on the web.
/*!
* Example JavaScript Custom Object
*
* Copyright 2010, Christopher Stoll
*/
// my custom JavaScript object constructor
function myObject(inParam) {
// I use underscore for pseudo private vars
this._objParam = inParam || "no param";
}
// a method for my object
myObject.prototype.getParam() = function() {
var tempParam;
tempParam = "You gave me " + this._objParam;
return tempParam;
}
And, here is an example instantiation:
var myInstance = new myObject(),
myOtherInstance = new myObject("a param");
alert(myInstance.getParam());
alert(myOtherInstance.getParam());
For more information on JavaScript I frequently turn to the
JavaScript Guide at the Mozilla Developer Center, their
re-introduction to JavaScript is also a great reference.
