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When should I use Kruskal as opposed to Prim (and vice versa)?
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202
Use Prim's algorithm when you have a graph with lots of edges.
For a graph with V vertices E ...
iOS difference between isKindOfClass and isMemberOfClass
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isKindOfClass: returns YES if the receiver is an instance of the specified class or an instanc...
How to generate string of a certain length to insert into a file to meet a file size criteria?
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352
You can always use the a constructor for string which takes a char and a number of times you wan...
Why isn't there a Guid.IsNullOrEmpty() method
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236
Guid is a value type, so a variable of type Guid can't be null to start with. If you want to k...
Understanding dispatch_async
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521
The main reason you use the default queue over the main queue is to run tasks in the background...
How do I create a copy of an object in PHP?
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289
In PHP 5+ objects are passed by reference. In PHP 4 they are passed by value (that's why it ha...
string.charAt(x) or string[x]?
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Bracket notation now works on all major browsers, except for IE7 and below.
// Bracket Notati...