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How to TryParse for Enum value?
...erything.
If you are using bitfield enums (i.e. flags), you also have to handle a string like "MyEnum.Val1|MyEnum.Val2" which is a combination of two enum values. If you just call Enum.IsDefined with this string, it will return false, even though Enum.Parse handles it correctly.
Update
As mention...
How to Customize the time format for Python logging?
I am new to Python's logging package and plan to use it for my project. I would like to customize the time format to my taste. Here is a short code I copied from a tutorial:
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How to reuse an ostringstream?
I'd like to clear out and reuse an ostringstream (and the underlying buffer) so that my app doesn't have to do as many allocations. How do I reset the object to its initial state?
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PHP validation/regex for URL
I've been looking for a simple regex for URLs, does anybody have one handy that works well? I didn't find one with the zend framework validation classes and have seen several implementations.
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How to print a string in fixed width?
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EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking at this should prefer the new format syntax.
You can use string formatting like this:
>>> print '%5s' % 'aa'
aa
>>> print '%5s' % 'aaa'
aaa
>>> print '%5s' % '...
?? Coalesce for empty string?
Something I find myself doing more and more is checking a string for empty (as in "" or null) and a conditional operator.
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An efficient way to transpose a file in Bash
... more explicit variable names will help answer some of the questions below and generally clarify what the script is doing. It also uses tabs as the separator which the OP had originally asked for so it'd handle empty fields and it coincidentally pretties-up the output a bit for this particular case....
Check string for palindrome
... ++i1;
--i2;
}
return true;
}
Example:
Input is "andna".
i1 will be 0 and i2 will be 4.
First loop iteration we will compare word[0] and word[4]. They're equal, so we increment i1 (it's now 1) and decrement i2 (it's now 3).
So we then compare the n's. They're equal, so w...
What's the most efficient way to erase duplicates and sort a vector?
...to take a C++ vector with potentially a lot of elements, erase duplicates, and sort it.
23 Answers
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How do I copy an entire directory of files into an existing directory using Python?
...ctory that contains a directory named bar (containing one or more files) and a directory named baz (also containing one or more files). Make sure there is not a directory named foo .
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