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What does “program to interfaces, not implementations” mean?
One stumbles upon this phrase when reading about design patterns.
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Difference between __str__ and __repr__?
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How to do error logging in CodeIgniter (PHP)
I want error logging in PHP CodeIgniter. How do I enable error logging?
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How to add a line break in C# .NET documentation
This should be waaaay easier...
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Mercurial move changes to a new branch
I have a number of changes that I committed to my local repository, but have not yet been pushed. Since on a feature is taking longer than expected, I want to swap these changes onto a named branch before I push. How can I do this?
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Binary Data in JSON String. Something better than Base64
The JSON format natively doesn't support binary data. The binary data has to be escaped so that it can be placed into a string element (i.e. zero or more Unicode chars in double quotes using backslash escapes) in JSON.
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Android image caching
How can I cache images after they are downloaded from web?
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How to replace all strings to numbers contained in each string in Notepad++?
I'm trying to find all values with following pattern :
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How can I create a UIColor from a hex string?
How can I create a UIColor from a hexadecimal string format, such as #00FF00 ?
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Random float number generation
How do I generate random floats in C++?
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