Optimizing the performance of WordPress

By Josh Highland in tutorials, wordpress

It’s no secret that I LOVE WordPress. I’ve been using the software for 6 years and have no plans to stop any time soon. Last year I attended WordCamp LA with @JasonKeller, it was awesome. I knew that I had to be involved with WordCamp 2010.

When WordCamp 2010 was announced, I signed up as a speaker. My topic, “Improving the performance of WordPress”.

I had a great time preparing and delivering my presentation. A lot of people asked me to post the slides online. I decided to do one better, and post a recorded version of my presentation.

[vimeo width=”500″ height=”375″]http://vimeo.com/14949829[/vimeo]

Download the slides in PDF format

Macbook Pro – Make an external monitor your primary display

By Josh Highland in mac, tutorials

Recently, I got a mac laptop at work, which is sup[er sweet, but I wanted to hook it up to a real monitor, keyboard and mouse. All very easy things to do. The problem I had was that the laptop was acting as the primary monitor. Every application that I drug over to the secondary monitor worked great, but the application tool bar was still on the laptop.. annoying.

I did a quick Google search to see if there was a solution to the problem. There was, and it’s dead simple to put into action.

Connect the external monitor

  • Start up the “System Preferences” app
  • Click on “Display Preferences”
  • Within Display Preferences, choose Arrangement. You should see two blue squares that represent each display, main and secondary. On the main display you’ll notice a bar along the top.
  • Click and drag this bar from the Main Display to the Secondary Display.
  • Close Display Preferences
  • That’s it!

UITextField.text is not always there!

By Josh Highland in iPhone app dev, tutorials

If you have UITextField in your app and you want to validate a value or  see is there something in it you might think to write some code like this:

if (![addNewCellTextField.text isEqualToString:@""])

You would be right, but this will fail if the field is never touched! When a user taps the field, and it gets focus, UITextField.text = nil. That means that the condition above would be true, thats not what we want at all!

But once the UITextField is touched, the value becomes an instance of NSString with value of @””.  So make sure that you write your code to check for the nil case, like this:

if (addNewCellTextField.text != nil && ![addNewCellTextField.text isEqualToString:@""])