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Prevent user from seeing previously visited secured page after logout
...n an url-pattern of interest, for example *.jsp.
@WebFilter("*.jsp")
Or if you want to put this restriction on secured pages only, then you should specify an URL pattern which covers all those secured pages. For example, when they are all in the folder /app, then you need to specify the URL patte...
List all files and directories in a directory + subdirectories
...d directory contained in a directory and subdirectories of that directory. If I chose C:\ as the directory, the program would get every name of every file and folder on the hard drive that it had access to.
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Best way to convert IList or IEnumerable to Array
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Which version of .NET are you using? If it's .NET 3.5, I'd just call ToArray() and be done with it.
If you only have a non-generic IEnumerable, do something like this:
IEnumerable query = ...;
MyEntityType[] array = query.Cast<MyEntityType>().ToArray();
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Multiprocessing: How to use Pool.map on a function defined in a class?
...oc]
[p.join() for p in proc]
return [p.recv() for (p, c) in pipe]
if __name__ == '__main__':
print parmap(lambda x: x**x, range(1, 5))
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jquery, find next element by class
... use .next(), like this:
$(obj).closest('tr').next().find('.class');
Or if there may be rows in-between without the .class inside, you can use .nextAll(), like this:
$(obj).closest('tr').nextAll(':has(.class):first').find('.class');
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How to change the text of a button in jQuery?
...btnAddProfile").prop('value', 'Save'); //versions newer than 1.6
<!-- Different button types-->
<button id='btnAddProfile' type='button'>Add</button>
$("#btnAddProfile").html('Save');
Your button could also be a link. You'll need to post some HTML for a more specific answer.
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Make a negative number positive
...l and do it yourself:
number = (number < 0 ? -number : number);
or
if (number < 0)
number = -number;
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Understanding slice notation
...lue represents the first value that is not in the selected slice. So, the difference between stop and start is the number of elements selected (if step is 1, the default).
The other feature is that start or stop may be a negative number, which means it counts from the end of the array instead of th...
How to do relative imports in Python?
...__ attribute to determine that module's position in the package hierarchy. If the module's name does not contain any package information (e.g. it is set to '__main__') then relative imports are resolved as if the module were a top level module, regardless of where the module is actually located on t...
What is the purpose of python's inner classes?
...es confuse me. Is there something that can't be accomplished without them? If so, what is that thing?
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