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How do you add an in-app purchase to an iOS application?

How do you add an in-app purchase to an iOS app? What are all the details and is there any sample code? 5 Answers ...
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Is there a case insensitive jQuery :contains selector?

...ery selector or should I do the work manually by looping over all elements and comparing their .text() to my string? 12 Ans...
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How to know if other threads have finished?

...ted, or Unorthodox, for each Thread in question, call setUncaughtExceptionHandler to call a method in your object, and program each Thread to throw an uncaught Exception when it completes, or Use locks or synchronizers or mechanisms from java.util.concurrent, or More orthodox, create a listener in y...
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Array vs. Object efficiency in JavaScript

I have a model with possibly thousands of objects. I was wondering what would be the most efficient way of storing them and retrieving a single object once I have it's id. The id's are long numbers. ...
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switch / pattern matching idea

I've been looking at F# recently, and while I'm not likely to leap the fence any time soon, it definitely highlights some areas where C# (or library support) could make life easier. ...
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Regexp Java for password validation

...dependent "module". The (?=.*[xyz]) construct eats the entire string (.*) and backtracks to the first occurrence where [xyz] can match. It succeeds if [xyz] is found, it fails otherwise. The alternative would be using a reluctant qualifier: (?=.*?[xyz]). For a password check, this will hardly mak...
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Extracting bits with a single multiplication

I saw an interesting technique used in an answer to another question , and would like to understand it a little better. ...
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What is the difference between List (of T) and Collection(of T)?

I've seen them used in a lot of the same ways, and I am worried I'm about to go down a path in design that is irreversible if I don't understand this better. Also, I am using .NET. ...
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What is the >>>= operator in C?

...ague as a puzzle, I cannot figure out how this C program actually compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???" ...
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How to skip “Loose Object” popup when running 'git gui'

...de which shows up that dialog. I found the hint_gc procedure which does it and the place where it is called. At the same time I noticed that late 2011 there was added a configuration option for disabling the dialog. This change (part of git-gui 0.16.0) was merged to Git's mainline on 2011-12-14. So...