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Difference between return and exit in Bash functions
What is the difference between the return and exit statement in Bash functions with respect to exit codes?
10 Answers
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How do I run IDEA IntelliJ on Mac OS X with JDK 7?
I use Mac OS X 10.8.2, and use JDK 7. Now I downloaded the latest version of IDEA IntelliJ, 11. But it doesn't seem to start without JDK 6. Is there any workaround?
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How does a hash table work?
... in layman's terms.
Let's assume you want to fill up a library with books and not just stuff them in there, but you want to be able to easily find them again when you need them.
So, you decide that if the person that wants to read a book knows the title of the book and the exact title to boot, the...
The static keyword and its various uses in C++
...tatic is one which has several meanings in C++ that I find very confusing and I can never bend my mind around how its actually supposed to work.
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What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
...sion attributes. What are differences? Is it ok if I use AssemblyVersion and ignore the rest?
7 Answers
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Python's equivalent of && (logical-and) in an if-statement
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You would want and instead of &&.
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What does Python's eval() do?
...was a trivial example, but you could let the user type in an arbitrary command and have python execute it. So you could have the user type in a command string and then have python run it as code. So for example: eval("__import__('os').remove('file')").
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Converting between datetime, Timestamp and datetime64
...d by np.datetime64 as time in UTC.
To convert datetime to np.datetime64 and back (numpy-1.6):
>>> np.datetime64(datetime.utcnow()).astype(datetime)
datetime.datetime(2012, 12, 4, 13, 34, 52, 827542)
It works both on a single np.datetime64 object and a numpy array of np.datetime64.
Th...
Finding duplicates in O(n) time and O(1) space
...ns in O(N) time. A swap only occurs if there is an i such that A[i] != i, and each swap sets at least one element such that A[i] == i, where that wasn't true before. This means that the total number of swaps (and thus the total number of executions of the while loop body) is at most N-1.
The seco...
How to compare software version number using js? (only number)
... would be to use Array.split to get arrays of parts from the input strings and then compare pairs of parts from the two arrays; if the parts are not equal we know which version is smaller.
There are a few of important details to keep in mind:
How should the parts in each pair be compared? The que...