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 | From Angela Bradley, your About Programming Editor Dear Subscriber,
Welcome to this week's edition of your About Programming Newsletter. This week we are looking at a book review of 'iOS 5 Programming Cookbook'. We are also looking at HGROUP, symbols in Ruby, and calculating string length in Perl.
Have a great week! | |
Book Review iOS 5 Programming Cookbook
If you've done a bit of iOS (IPhone, iPad or iPod Touch) programming then you'll find this the iOS 5 Programming Cookbook a very useful book. It's not for anyone learning to program, as it requires prior iOS programming experience but if you have that there are plenty of examples and useful, fully fleshed code to help you.
| HGROUP is Still in the HTML5 Specification
While there is some controversy surrounding the HTML5 HGROUP element, this element is still part of the specification and does serve a purpose. It is very useful for creating HTML5 outlines that don't have dozens of headings without content. But many designers use this new element incorrectly. Learn how to use the HTML5 HGROUP element.
| Symbols
Symbols are a mystery to new Rubyists. They're something like strings, but what are they exactly? How do you use them effectively? As they have no real analog in most other programming languages (they're similar to #define constants in C or enums in C++ though), they're one of the stumbling blocks for new Rubyists.
| Calculate Perl String Length
One of the most common things you might want to do is calculate Perl string length. For instance, you might ask the user to enter some text and want to make sure that they haven't entered too much or too little. Piece of cake. Just use Perl's length() function.
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