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Elegant Python function to convert CamelCase to snake_case?
...t;!^)(?=[A-Z])', '_', name).lower()
print(name) # camel_case_name
If you do this many times and the above is slow, compile the regex beforehand:
pattern = re.compile(r'(?<!^)(?=[A-Z])')
name = pattern.sub('_', name).lower()
To handle more advanced cases specially (this is not reversible anymor...
COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
...base allows COUNT(tableHere) or COUNT(tableHere.*), use that.
In short, don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those rare cases is equivalent to count(*)
Use count(*) for counting
Use * for all your queries that need to count everything, ...
Validate that end date is greater than start date with jQuery
How do I check/validate in jQuery whether end date [textbox] is greater than start date [textbox]?
15 Answers
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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
...)
On better algorithm
Instead of calling remove one at a time with random indices, it's better to generate enough random numbers in the range, and then traversing the List once with a listIterator(), calling remove() at appropriate indices. There are questions on stackoverflow on how to generat...
Android; Check if file exists without creating a new one
I want to check if file exists in my package folder, but I don't want to create a new one.
7 Answers
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Dependent DLL is not getting copied to the build output folder in Visual Studio
...Class dummy006; // this will be enough to cause the DLL to be copied
You don't need to do this for every class -- just once will be enough to make the DLL copy and everything work as expected.
Addendum: Note that this may work for debug mode, but NOT for release. See @nvirth's answer for details....
Can't pickle when using multiprocessing Pool.map()
...od, a bound method; so of course pickle now tries to pickle THAT -- and it does as you've told it to: by calling _pickle_method, recursively. I.e. by OOing the code in this way, you have inevitably introduced infinite recursion. I suggest going back to Steven's code (and not worshipping at the alt...
How to redirect the output of a PowerShell to a file during its execution
...problem is that I cannot change the way this script is called. So I cannot do:
10 Answers
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The “unexpected ++” error in jslint [duplicate]
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This doesn't really explain the 'adds' confusion' bit. @samir-talwar adds an explaination.
– Matt Clarkson
Sep 12 '11 at 13:44
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How to read file from relative path in Java project? java.io.File cannot find the path specified
...en just obtain it from the classpath instead of from the disk file system. Don't fiddle with relative paths in java.io.File. They are dependent on the current working directory over which you have totally no control from inside the Java code.
Assuming that ListStopWords.txt is in the same package a...