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How do I check if a string is a number (float)?
... don't think that the code is perfect (but I think it's very close): it is more usual to put only the part being "tested" in the try clause, so I would put the return True in an else clause of the try. One of the reasons is that with the code in the question, if I had to review it, I would have to ...
What are the differences between Chosen and Select2?
Chosen and Select2 are the two more popular libraries for extending selectboxes.
11 Answers
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Correct way to use StringBuilder in SQL
... Will that take memory equal to using String like below?
No, it'll cause more memory churn than just the straight concat you quoted. (Until/unless the JVM optimizer sees that the explicit StringBuilder in the code is unnecessary and optimizes it out, if it can.)
If the author of that code wants t...
How can I initialise a static Map?
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In STL maps, is it better to use map::insert than []?
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I updated to be more clear that map::insert never replaces. I left the else because I think using value is clearer than than the iterator. Only if the value's type had an unusual copy ctor or op== would it be different, and that type would...
What is the difference between background and background-color
...background-color, using the background shorthand you could also add one or more values without repeating any other background-* property more than once.
Which one to choose is essentially up to you, but it could also depend on specific conditions of your style declarations (e.g if you need to overr...
Haskell, Lisp, and verbosity [closed]
...-order function (and I include monads, arrows, etc.), but it might require more thinking (but only the first time, and it's fun and you'll be a better programmer for it), and
the static system is sufficiently general that it never gets in your way, and somewhat surprisingly it actually "aids in achi...
Is there a valid reason for enforcing a maximum width of 80 characters in a code file, this day and
...mewhat depending on other parameters) because longer lines do make reading more difficult. Maximum code line length could be argued, but 80 is convenient for historical and practical reasons.
– Steve S
Jan 26 '09 at 16:53
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The smallest difference between 2 Angles
... = targetA - sourceA
a += (a>180) ? -360 : (a<-180) ? 360 : 0
In a more verbose way:
a = targetA - sourceA
a -= 360 if a > 180
a += 360 if a < -180
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Extracting extension from filename in Python
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wouldn't endswith() not be more portable and pythonic?
– Sebastian Mach
Aug 28 '13 at 16:42
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