web 2.0, frontend, ajax, flash, css, dhtml, php

Good learning if you are interested in learning Java.

Link

I found a great post regarding the subject. It’s a very good read.

I often use String.replace in JavaScript whenever I have to use JavaScript. Today was the day that I ended up with using it for my work. I know that String.replace supports regular expression to match your string, but I was not clear if I could use “capturing groups” and “quantifiers”. As I guessed, I was able to use quantifiers in the replace string like the sample below:

    var link_template = '<ol>\
        <li><label>Link 1 Title:</label><input class="text" id="relLink1title" name="relLink{1}title" value="" /></li>\
        <li><label>Link 1 URL:</label><input class="text" id="relLink1url" name="relLink{1}url" value="" /></li>\
        <li><label>Link 1 Img URL:</label><input class="text" id="rellink1imgurl" name="rellink{1}imgurl" value="" /></li>\
        <li class="btn"><span><a href="#" class="new-related-link">Add a New Link</a> | <a href="#" class="remove-related-link">Remove</a></span></li>\
        </ol>';
 
    link_template = link_template.replace(/(<label>.*?)(\d)(.*?<\/label>)/im, '$1 2 $2');

Many developers heard/use/implement/develop RESTful web services daily basis including myself. It seems likely that we all know what it is and how it works. However, if we ask ourselves why we are using it, what would be your answer?

My answer to this question is this:

To make *services* more sense.

We all know that RESTful web services utilizes http methods such as GET, POST, PUT, and DELETE. Most commonly used methods to me are GET and POST. And technical aspects of discussion can keep going. However, the question is how we can utilize RESTful web services and how we can make it so that other developers can consume them in easy way? Eventually RESTful web services is for openness. Facebook opens up their RESTful API so that other developers or 3rd party application of facebook can pull up information on users or something like that.

With RESTful API, it is *possible* that you can organize calls.

Let’s look at this imaginable API path for getting a particular movie info.

http://RESTfulAPIHost:Port/movie/

By just looking at the API path, you can take a good guess of what it might return to you. And then after that, you naturally think ahead and append movies name to it.

http://RESTfulAPIHost:Port/movie/dark-knight/

Looking at the API path, I would naturally think that I could expect movie information for the movie “Dark Knight”. This natural thought process leads to more details API paths like these:

When iPhone came out for the first time, I was amazed at how iPhone rotated safari web browser. I wondered how iPhone would rotate it and was not aware that not all iPhone applications are rotatable, but now I know how.

Let’s assume that we already have your own extended UIViewController class. UIViewController class has these two classes for the rotate feature:

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-(BOOL)shouldAutorotateToInterfaceOrientation:
	(UIInterfaceOrientation)interfaceOrientation {
}
-(void)willRotateToInterfaceOrientation:
	(UIInterfaceOrientation)orientation
		duration:(NSTimeInterval)duration {
}

shouldAutorotateToInterfaceOrientation method. You simply just return “YES” so that the viewcontroller rotate its views automatically. The 2nd method “willRotateToInterfaceOrientation” is the one you want to implement.

Let’s say you already had one UIView object with white color background. When you rotated your iPhone or iPhone simulator to landscape orientation, the UIView would be rotated. However, the view wouldn’t fit the screen. To make the view to stretch to the all 4 edges of the screen, I would write something like this:

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-(void)willRotateToInterfaceOrientation:
	(UIInterfaceOrientation)orientation
		duration:(NSTimeInterval)duration {
	CGRect appFrame;
	appFrame.origin = CGPointMake(0.0f, 0.0f);
	if ((orientation == UIInterfaceOrientationLandscapeLeft) ||
			(orientation == UIInterfaceOrientationLandscapeRight))
		appFrame.size = CGSizeMake(480.0f, 300.0f);
	else
		appFrame.size = CGSizeMake(320.0f, 460.0f);
 
	[contentView setFrame:appFrame];
}

As you can see, every time view gets rotated, you would need to use setFrame method to set the new frame with a new size and new origin.