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How to do scanf for single char in C [duplicate]
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Now that's wild! Would you explain why the space in front of %c makes a difference?
– Max Coplan
Sep 10 '19 at 15:59
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Is 'switch' faster than 'if'?
Is a switch statement actually faster than an if statement?
12 Answers
12
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What is the python keyword “with” used for? [duplicate]
...resource is "cleaned up" when the code that uses it finishes running, even if exceptions are thrown. It provides 'syntactic sugar' for try/finally blocks.
From Python Docs:
The with statement clarifies code that previously would use try...finally blocks to ensure that clean-up code is executed. In ...
Get ID of last inserted document in a mongoDB w/ Java driver
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It's safe to do
doc.set("_id", new ObjectId())
if you look at driver code
if ( ensureID && id == null ){
id = ObjectId.get();
jo.put( "_id" , id );
}
public static ObjectId get(){
return new ObjectId();
}
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How to initialize a private static const map in C++?
...;< A::myMap[1]; into main(). It gives an error. The error doesn't occur if I remove the const qualifiers, so I guess map's operator[] can't handle a const map, at least, not in the g++ implementation of the C++ library.
– Craig McQueen
Oct 31 '13 at 1:08
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Error starting jboss server
...ling my OS, and as always install and test standard tools which I use, and now I get this error like never before when I tried to start Jboss 5 from eclipse, its quite big exeption :
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How to override a JavaScript function
...nction by just re-declaring it.
parseFloat = function(a){
alert(a)
};
Now parseFloat(3) will alert 3.
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UILabel Align Text to center
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N.B.: As per the UILabel class reference, as of iOS 6 this approach is now deprecated.
Simply use the textAlignment property to see the required alignment using one of the UITextAlignment values. (UITextAlignmentLeft, UITextAlignmentCenter or UITextAlignmentRight.)
e.g.: [myUILabel setTextAlig...
If Python is interpreted, what are .pyc files?
.... Hence why we call it a VM ? Like Esperanto for assembly language really. Nowadays we even have native code for fictional (but still emulated) CPU's (Mojang's effort to get the kiddies interested). Rexx was (or could be) truly interpreted, and BAT and CMD (and DCL) are interpreted.
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What's the difference between process.cwd() vs __dirname?
What's the difference between
4 Answers
4
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