JavaScript

JavaScript ...

Strings

	SELFHTML Forumsarchiv Leerzeichen describes some ways to have a trim() function, though JavaScript itself does not have one. Peter S. describes how to supplement a trim() method to the native JavaScript String object via the prototype property (# 20111216.1632).	Thread (advanced)
	SELFHTML Forumsarchiv Trim describes some ways to have a trim() function, though JavaScript itself does not have one (# 20111216.1631).	Thread

Try/catch

JavaScript has a full try/catch feature with the keywords try, catch, finally and throw.

   // sequence : try/catch cradle (# 20111229.1141)
   // status : not tested
   try {
      // ..
      throw "Error one";
   }
   catch (ex) {
      if (ex = "Error one") {
         alert("Exception Error one.\n - ex = " + ex;
      }
      else {
         alert("Exception.\n - ex = " + ex;
      }
   }
   finally {
      // cleanup code
   }

Check if file exists

... e.g. in the Editpointstatic, where scripts shall be loaded at runtime, it is wanted to see if a file exists ...

	Article at irt.org How do I check if an image file exists? offers some code ... (# 20120102.1912).	Code
	In thread Using JavaScript to check if a file exists in the tycoonTalk forum (# 20120102.1911).	Thread

Event registration

Article series at quriksmode.org, starting with Introduction to events (# 20120104.1021). ... e.g. chapter Traditional event registration model is telling, that not two events can be registered in one inline. (# 20120104.1022).

Articles

Miscellaneous

About the class keyword : stackoverflow.com/questions/1728984/class-keyword-in-javascript (# 20111206.1231)

About the prototype keyword : javascript.about.com/od/objectorientedjavascript/a/oop8.htm (# 20111206.1232)

Nice article: Switch On The Code article jQuery Really Simple Tabs (# 20110930.1642)

IDEs and tools

As with every programming language, the first question is "What is the environment? What are the debug facilities?". The spectrum reaches from IDE to simple Texteditor. Web development complicates the matter, as no single IDE is sufficient, because we always have a mixture of several languages, e.g. JavaScript, HTML, PHP as a typical combination.

www.akshell.com	Akshell ... an online IDE with the slogan "Create web apps in JavaScript right from your browser" ...
http://www.aptana.com	Aptana Studio ... runs on a JVM ...
cloud9ide.com	Cloud9 IDE ... here an article about it ...
www.e-texteditor.com	E Text Editor ... bundling with jQuery ... [no debugger ?]
www.sencha.com/products/extjs	Ext JS 4 with Ext Designer ... (595 USD or more)
www.geany.org	Geany ... a text editor using the GTK2 toolkit ... [debugger?] ...
www.jetbrains.com/idea	IntelliJ IDEA ... standalone or as Eclipse plugin ... License: dual licensing with an open source community edition and a commercial edition (58..126 Euro)
www.ixedit.com	IxEdit with the slogan "The first on-the-fly interaction design tool for the web" ...
www.activestate.com/komodo-ide	Komodo IDE ... with a jQuery library extension ...
netbeans.org	NetBeans ... here an article about it's JavaScript features ... and an article about it's jQuery library ...
www.scintilla.org	Scintilla ... [no debugger ?]
spket.com	Spket IDE ... standalone or Eclipse plugin ...
www.microsoft.com/../visual-web-developer-express	Visual Web Developer 2010 Express ...
developer.ebay.com/products/vjet	VJET ... standalone or Eclipse plugin ...
www.jetbrains.com/webstorm	WebStorm ... License: dual licensing with an open source community edition and a commercial edition (58..126 Euro)
www.zend.com/de/products/studio	Zend Studio, a PHP IDE, but processes also JavaScript ...
.	.

A page containing proposals for JavaScrip IDEs is stackoverflow.com/../good-javascript-ide-with-jquery-support (# 20110812.1731)

My favorite pages when having JavaScript questions or searching for sample scripts.

www.quirksmode.org (# 20110810.1641)	Paul-Peter Koch analyses Browser behaviour and presents quite a mass of JavaScript scripts and background knowhow. Very detailled and precise information.
www.javascripttoolbox.com (# 20110810.1721) and www.ajaxtoolbox.com (# 20110810.1726)	Matt Kruse wrote some very nice scripts.
http://javascript-array.com (# 20110810.1541)	Javascript-Array.com has some nice scripts on board.

About the onload event and how to modify it, so it fires immediately after the DOM is available, not waiting until all peripheral files (e.g. images) are loaded.

http://phpperformance.de/javascript-event-onload-und-die-bessere-alternative (# 20110805.1411)
http://www.thefutureoftheweb.com/blog/adddomloadevent (# 20110805.1412)

Books

Book: Das JavaScript Codebook Ralph Steyer: Das JavaScript Codebook. (# 20111031.1321).

Book: Das JavaScript Codebook Ross Harmes and Dustin Diaz: JavaScript Objektorientierung und Entwurfsmuster. (# 20111031.1322).

Book: Das JavaScript Codebook Andreas Vdovkin: jQuery kurz & gut. (# 20111031.1323).

Book: JavaScript Primer Plus Gabriel Torok, Jeffrey Payne, Matt Weisfeld : JavaScript Primer Plus. (# 19970613.1700).