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How line ending conversions work with git core.autocrlf between different operating systems

...rojects has been making my life miserable for a long time. The problems usually arise when there are already files with different and mixed EOLs already in the repo. This means that: The repo may have different files with different EOLs Some files in the repo may have mixed EOL, e.g. a combination...
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How to add property to a class dynamically?

...ing on. Better late than never. You can add a property to a class dynamically. But that's the catch: you have to add it to the class. >>> class Foo(object): ... pass ... >>> foo = Foo() >>> foo.a = 3 >>> Foo.b = property(lambda self: self.a + 1) >>&...
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Constant Amortized Time

... in simple terms: If you do an operation say a million times, you don't really care about the worst-case or the best-case of that operation - what you care about is how much time is taken in total when you repeat the operation a million times. So it doesn't matter if the operation is very slow onc...
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What is the difference between quiet NaN and signaling NaN?

...unit (FPU) or library if floating-point is implemented in software. A signalling NaN will produce a signal, usually in the form of exception from the FPU. Whether the exception is thrown depends on the state of the FPU. C++11 adds a few language controls over the floating-point environment and pr...
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ValidateAntiForgeryToken purpose, explanation and example

...icking the logged in user into submitting a form, or by simply programmatically triggering a form when the page loads. The feature doesn't prevent any other type of data forgery or tampering based attacks. To use it, decorate the action method or controller with the ValidateAntiForgeryToken attrib...
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How can I handle time zones in my webapp?

... The majority of your users probably will not change timezones much, or at all. For the most part, the situation you outlined is uncommon. By implementing a dropdown with a suitable default, you should be able to make things easy enough for those who do move around (because they typically have a bet...
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What is the meaning of the term arena in relation to memory?

... An arena is just a large, contiguous piece of memory that you allocate once and then use to manage memory manually by handing out parts of that memory. For example: char * arena = malloc(HUGE_NUMBER); unsigned int current = 0; void * my_malloc(size_t n) { current += n; return arena +...
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Does Flask support regular expressions in its URL routing?

...will be evaluated directly at runtime. This shouldn't be problematic for smaller apps (or apps that reuse regex's multiple times, I'd think) as the last couple of regex patterns are stored compiled in memory. – bbenne10 Jul 18 '13 at 14:13 ...
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Grid of responsive squares

...creating a layout with responsive squares . Each square would have vertically and horizontally aligned content. The specific example is displayed below... ...
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./

... The regular expression for this is really simple. Just use a character class. The hyphen is a special character in character classes, so it needs to be first: /[-!$%^&*()_+|~=`{}\[\]:";'<>?,.\/]/ You also need to escape the other regular expressio...