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Why is NaN not equal to NaN? [duplicate]
... I also like NaN to propagate "like a virus". Unfortunately, it doesn't. The moment you compare, for example, NaN + 1 != 0, or NaN * 1 > 0, it returns True or False as if everything was fine. Therefore, you can't rely on NaN protecting you from problems if you plan to use comparison op...
When should I really use noexcept?
...nto account the fact that you may have lied. If a function marked noexcept does throw, then std::terminate is called.
These semantics were chosen for two reasons:
immediately benefiting from noexcept even when dependencies do not use it already (backward compatibility)
allowing the specification ...
When do you use POST and when do you use GET?
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How does not sticking info in the URL make it more secure? (Btw, I am one of those who believes that a false sense of security is more dangerous, than not having security at all).
– ePharaoh
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What does (function($) {})(jQuery); mean?
...as plugins tend to be functions.
Type 2: This is again not a plugin as it does not extend the $.fn object. It's just an extenstion of the jQuery core, although the outcome is the same. This is if you want to add traversing functions such as toArray and so on.
Type 3: This is the best method to add...
The name does not exist in the namespace error in XAML
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When you are writing your wpf code and VS tell that "The name ABCDE does not exist in the namespace clr-namespace:ABC". But you can totally build your project successfully, there is only a small inconvenience because you can not see the UI designing (or just want to clean the code).
Try to ...
Dictionary returning a default value if the key does not exist [duplicate]
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To open a can of worms, these extensions work when key doesn't exist, but TryGetValue throws if key is null. Knowing whether key is nullable or not would make this a trivial check.
– ProfK
Sep 27 '12 at 6:12
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Windows batch files: .bat vs .cmd?
...x. Assuming that my code will never need to run on anything older than NT, does it really matter which way I name my batch files, or is there some gotcha awaiting me by using the wrong suffix?
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F# changes to OCaml [closed]
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The main differences are that F# does not support:
functors
OCaml-style objects
polymorphic variants
the camlp4/5 preprocessor or extension points (ppx)
In addition, F# has a different syntax for labeled and optional parameters.
In theory, OCaml program...
About Java cloneable
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Note that Block says not to use Cloneable. He does not say don't use cloning (or at least I hope not). There are many ways to implement cloning simply that are far more efficient than classes like SerializationUtils or BeanUtils that use reflection. See my post below for...
:active pseudo-class doesn't work in mobile safari
...Pod, specifying styling for an :active pseudo-class for an <a> tag doesn't trigger when you tap on the element. How can I get this to trigger? Example code:
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