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Regular expressions can be used with NSPredicate that is part of Core Data, available since Mac OS X 10.4 and officially announced for iPhone OS 3.0. Cocoa's WebView and the equivalent UIWebView in Cocoa Touch both support JavaScript with regular expressions. So there sure is regular expressions available on the platforms, but how do you make it available for your own code?

Submitted by: JDStraughan
Submitted on: Aug 2, 2009

First impressions last, and the very first impression your users have of your iPhone application is the start up. First step is to have a nice Default.png, but not many words spilled on that one, it is well covered in Apple's documentation.

Submitted by: JohnGalt
Submitted on: Jul 1, 2009

Getting objects to talk to one another in Objective-C is a easy as passing a message from one to the other. These messages are typically passed through the message-invocation mechanism of using the square-braces to bind a message and arguments to a receiver. Most of the time this is a perfectly reasonable way to communicate. However there are times when you need objects to communicate without having explicit knowledge of one another.

Submitted by: JDStraughan
Submitted on: Jun 26, 2009

I’ve seen a good bit of sample code that shows how to implement using a UINavigationController in a view controller that is managed by a UITabBarController, but I haven’t seen much on how to do it with Interface Builder. Turns out that it’s pretty simple and I’m going to show you how.

Submitted by: JDStraughan
Submitted on: Jun 26, 2009

Both Safari and Webkit have extensive web developer tools that can easily be enabled from the command line.

Submitted by: willemvzyl
Submitted on: Mar 1, 2009

In this video, Tom Armitage shows you how he used State Machines to make 4 different bots talk to each other over Twitter... An interesting and new way of thinking. Will likely open you mind to new options for coding bots...

Submitted by: kenjones
Submitted on: Feb 26, 2009