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CSS: Animation vs. Transition

So, I understand how to perform both CSS3 transitions and animations . What is not clear, and I've googled, is when to use which. ...
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How to programmatically get iOS status bar height

I know that currently the status bar (with the time, battery, and network connection) at the top of the iPhone/iPad is 20 pixels for non-retina screens and 40 pixels for retina screens, but to future proof my app I would like to be able to determine this without hard coding values. Is it possible to...
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How to Correctly handle Weak Self in Swift Blocks with Arguments

... Apple called blocks "closures" in their very first document for a C language extension. (Blocks or closures are an extension of C at the very first. Only MM is related to Objective-C.) Even I prefer the term "closure", too, because "blocks" in C is related to compound statements very o...
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How do I make a delay in Java?

I am trying to do something in Java and I need something to wait / delay for an amount of seconds in a while loop. 8 Answer...
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Autoresizing masks programmatically vs Interface Builder / xib / nib

...as in an (probably false) assumption that enabling the right margin indicator in xib is equivalent to using UIViewAutoresizingFlexibleLeftMargin inside code and so on. ...
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What are the recommendations for html tag?

I've never seen <base> HTML tag actually used anywhere before. Are there pitfalls to its use that means I should avoid it? ...
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Are there any smart cases of runtime code modification?

Can you think of any legitimate (smart) uses for runtime code modification (program modifying it's own code at runtime)? 1...
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Python way of printing: with 'format' or percent form? [duplicate]

In Python there seem to be two different ways of generating formatted output: 4 Answers ...
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Easiest way to activate PHP and MySQL on Mac OS 10.6 (Snow Leopard), 10.7 (Lion), 10.8 (Mountain Lio

... Open a good text editor (I'd recommend TextMate, but the free TextWrangler or vi or nano will do too), and open: /etc/apache2/httpd.conf Find the line: "#LoadModule php5_module libexec/apache2/libphp5.so" And uncomment it (remove th...
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Python csv string to array

Anyone know of a simple library or function to parse a csv encoded string and turn it into an array or dictionary? 10 Answe...