Comments on: Object-Orientated JavaScript

By: Deepak

Deepak — Mon, 29 Mar 2010 09:00:30 +0000

Fantastic! Thanks.

By: _es

_es — Sun, 25 Jan 2009 19:01:11 +0000

Local static variable? "staticlocal" is GLOBAL variable - property.

var id1 = function(){var n = 0; return function(){return n++;};}(); // or: with({n:0}) var id2 = function(){return n++;};

By: af

af — Tue, 16 Dec 2008 03:52:20 +0000

note that ‘this’ doesn’t refer to the function itself, but the object through which the function was invoked.

By: Christian S.

Christian S. — Wed, 07 Mar 2007 17:58:08 +0000

member function - PRIVATE:

class C { private: void implementation() {} };

// NO JAVASCRIPT EQUIVALENT

Isnt it as follows??

function C() { var implementation = function() { }; }

By: horst

horst — Sun, 04 Mar 2007 14:34:12 +0000

nope Andrey. It’s slower.

By: gaba: TÃ…Â±zfablog

gaba: TÃ…Â±zfablog — Mon, 11 Dec 2006 19:56:49 +0000

[...] Ha mÃƒÂ¡r ott voltam, kÃƒÂ¶rbenÃƒÂ©ztem a blogon. Szimpatikus hely. Van pl. egy ÃƒÂ©rdekes cikk, ami a JavaScript objektumorientÃƒÂ¡l vonÃƒÂ¡sait vizsgÃƒÂ¡lja meg a C++-hoz valÃƒÂ³ hasonlÃƒÂtÃƒÂ¡s segÃƒÂtsÃƒÂ©gÃƒÂ©vel: Object Orientated JavaScript [...]

By: Andrey

Andrey — Wed, 21 Jun 2006 09:56:08 +0000

function C(){ this.getData = function(){ return true; } } better is function C(){} function C.prototype.getData() { return true; }

By: Keith Hollingshead

Keith Hollingshead — Sun, 22 Jan 2006 16:08:40 +0000

nice article!

By: Mark Koesel

Mark Koesel — Fri, 20 Jan 2006 18:08:42 +0000

When not preceded with a class name in dot notation, nested functions in JavaScript are not static methods. By necessity, static methods can only access static members. Clearly nested functions can access instance members and thus they must not be static. They must, instead, be instance methods.

FireFox and Safari may well allow these nested functions to be called as public static methods of the class. This means that these two userAgents have a namespace collision between public static methods and private instance methods. That is to say that, by declaring one, you automatically declare the other. What this means is that these methods will have undesired behavior when called in whichever context they were not designed for. However, we must point out that constructors in Javascript face the same dilema since they too can be called statically.

By: Gabriel Boehme

Gabriel Boehme — Mon, 01 Aug 2005 20:46:18 +0000

Check out http://www.crockford.com/javascript/private.html and http://www.litotes.demon.co.uk/js_info/private_static.html for techniques for creating private variables & methods in Javascript, and http://www.crockford.com/javascript/inheritance.html for further ways of duplicating classical inheritance within Javascript.