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Difference between string object and string literal [duplicate]
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Cookies vs. sessions
...p, I heard that for the particular case of storing user's ID, sessions are more appropriate. So I started thinking about what would I say if the jury asks me why have you used cookies instead of sessions? I have just that reason (that I do not need to store internally information about the user). Is...
In Python, what is the difference between “.append()” and “+= []”?
...bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Timer('s.append("something")', 's = []').timeit()
0.20177424499999999
>>> timeit.Timer('s += ["something"]', 's = []').timeit()
0.41192320500000079
Py...
How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
... # Unix to DOS
However, if you're going to have to do this very often (more than once, roughly speaking), it is far more sensible to install the conversion programs (e.g. dos2unix and unix2dos, or perhaps dtou and utod) and use them.
If you need to process entire directories and subdirectories,...
Disable same origin policy in Chrome
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Replacing spaces with underscores in JavaScript?
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Exporting APK from eclipse (ADT) silently crashes
...utside Eclipse you can generate an Ant build.xml from your Eclipse project more info in official Android docs
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How can building a heap be O(n) time complexity?
...til it is in the correct location.
Which implementation for buildHeap is more efficient?
Both of these solutions will produce a valid heap. Unsurprisingly, the more efficient one is the second operation that uses siftDown.
Let h = log n represent the height of the heap. The work required for the s...
“Diff” an image using ImageMagick
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What does gcc's ffast-math actually do?
... One thing to note is that ffast-math optimizations don't necessarily add "more" round-off. The only reason why it's not IEEE compliant is because the answer is different (albeit slightly) from what is written.
– Mysticial
Sep 14 '11 at 18:03
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