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Default value of a type at Runtime [duplicate]

For any given type i want to know its default value. 6 Answers 6 ...
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Declaring variables inside loops, good practice or bad practice?

...les inside loops, you ensure their scope is restricted to inside the loop. It cannot be referenced nor called outside of the loop. This way: If the name of the variable is a bit "generic" (like "i"), there is no risk to mix it with another variable of same name somewhere later in your code (can a...
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Good examples of Not a Functor/Functor/Applicative/Monad?

...ewtype T a = T (a -> Int) You can make a contravariant functor out of it, but not a (covariant) functor. Try writing fmap and you'll fail. Note that the contravariant functor version is reversed: fmap :: Functor f => (a -> b) -> f a -> f b contramap :: Contravariant f ...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

...ave searched about static variables in C#, but I am still not getting what its use is. Also, if I try to declare the variable inside the method it will not give me the permission to do this. Why? ...
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Redirect all to index.php using htaccess

I'm writing a simple PHP-based MVC-ish framework. I want this framework to be able to be installed in any directory. 7 Answ...
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Dependency Inject (DI) “friendly” library

...inciple is actually a quote (from memory though) from Design Patterns, but it should always be your real goal. DI is just a means to achieve that end. Apply the Hollywood Principle The Hollywood Principle in DI terms says: Don't call the DI Container, it'll call you. Never directly ask for a depe...
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What is ANSI format?

What is ANSI encoding format? Is it a system default format? In what way does it differ from ASCII? 10 Answers ...
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A numeric string as array key in PHP

Is it possible to use a numeric string like "123" as a key in a PHP array, without it being converted to an integer? 11 A...
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What is console.log?

... It's not a jQuery feature but a feature for debugging purposes. You can for instance log something to the console when something happens. For instance: $('#someButton').click(function() { console.log('#someButton was click...
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What does it mean that Javascript is a prototype based language?

One of the major advantages with Javascript is said to be that it is a prototype based language. 7 Answers ...