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Replacing all non-alphanumeric characters with empty strings
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Use [^A-Za-z0-9].
Note: removed the space since that is not typically considered alphanumeric.
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Direct casting vs 'as' operator?
... tend to almost never use 2 since if something is not the right type, I usually expect an exception to occur. I have only seen a need for this return-null type of functionality with badly designed libraries which use error codes (e.g. return null = error, instead of using exceptions).
3 is not a ca...
Read only the first line of a file?
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Acumenus
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answered Dec 15 '09 at 0:17
Tor ValamoTor Valamo...
Eclipse copy/paste entire line keyboard shortcut
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Select the filtered row, right click the 'Binding' field, and do Select All
Press Ctrl+Shift+V
Give OK
From now on, for any line you want to duplicate, just press Ctrl+Shift+V.
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How do getters and setters work?
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Dmitry Ginzburg
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answered Jan 10 '10 at 12:27
Paul CreaseyPaul Creas...
Find the index of a dict within a list, by matching the dict's value
...as readable or Pythonic is @Emile's answer. Because the intention is not really to create a generator (and using next() for this seems weird to me), the aim is just to get the index. Also, this raises StopIteration, whereas the Python lst.index() method raises ValueError.
– Ben...
make_unique and perfect forwarding
... A make_unique function template does not itself guarantee exception safe calls. It relies on convention, that the caller uses it. In contrast, strict static type checking (which is the main diff between C++ and C) is built on the idea of enforcing safety, via types. And for that, make_unique can si...
Modify tick label text
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Caveat: Unless the ticklabels are already set to a string (as is usually the case in e.g. a boxplot), this will not work with any version of matplotlib newer than 1.1.0. If you're working from the current github master, this won't work. I'm not sure what the problem is yet... It may be an ...
GitHub clone from pull request?
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shilovk
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answered Feb 19 '13 at 0:42
inancsevincinancsev...
How can I see the size of files and directories in linux? [closed]
... files and directories in Linux? If use df -m , then it shows the size of all the directory at the top level, but, for the directories and files inside the directory, how do I check the size?
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