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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
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Edit: This is a more complete version that shows more differences between [ (aka test) and [[.
The following table shows that whether a variable is quoted or not, whether you use single or double brackets and whether the variable contains only a...
What is the purpose of the “final” keyword in C++11 for functions?
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What you are missing, as idljarn already mentioned in a comment is that if you are overriding a function from a base class, then you cannot possibly mark it as non-virtual:
struct base {
virtual void f();
};
struct derived : base {
void f() final; // virtual as it ove...
JavaScript: Check if mouse button down?
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}
}
Now be warned that the code above would work only for standard-compliant browsers that pass you a button number starting from 0 and up. IE uses a bit mask of currently pressed buttons:
0 for "nothing is pressed"
1 for left
2 for right
4 for middle
and any combination of above, e.g., 5 ...
Creating a new dictionary in Python
...parently CPython 2.7 dict() is slower (6 times slower?), See: doughellmann.com/2012/11/… In any case I am starting to prefer the constructor syntax anyways since I find it easier to type and move code between dicts and function calls.
– David Wheaton
Mar 5 '1...
Can you provide some examples of why it is hard to parse XML and HTML with a regex? [closed]
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HTML button calling an MVC Controller and Action method
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How to disable JavaScript in Chrome Developer Tools?
... @MattParkins Chrome Developer Tool seem to break every now and then ("complex" code I guess ^^). So use Alex's answer isntead stackoverflow.com/a/13405449/759452
– Adrien Be
Dec 5 '14 at 13:48
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What is the best way to get all the divisors of a number?
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monoxide: this computes all multiplicative combinations of the given factors. Most of it should be self-explanatory; the "yield" line is like a return but keeps going after returning a value. [0]*nfactors creates a list of zeros of length n...
How to Use slideDown (or show) function on a table row?
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