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Replacements for switch statement in Python?
...putting the dict outside of the function if performance is an issue, so it doesn't re-build the dict on every function call
– Claudiu
Oct 23 '08 at 16:22
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How to execute a Python script from the Django shell?
..., use < instead:
$ ./manage.py shell < myscript.py
You could also do:
$ ./manage.py shell
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>>> execfile('myscript.py')
For python3 you would need to use
>>> exec(open('myscript.py').read())
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UIButton: set image for selected-highlighted state
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Any way to do this via interface builder?
– Stephen
Nov 15 '12 at 6:31
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How do I check in SQLite whether a table exists?
How do I, reliably , check in SQLite, whether a particular user table exists?
22 Answers
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How to prune local tracking branches that do not exist on remote anymore
...te tracking branches that are not in the list of remotes.
This line should do the trick (requires bash or zsh, won't work with standard Bourne shell):
git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -vv | grep origin) | awk '{print $1}' | xargs git branch -d
This string get...
how do i remove a comma off the end of a string?
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$string = rtrim($string, ',');
Docs for rtrim here
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How should I unit test threaded code?
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Look, there's no easy way to do this. I'm working on a project that is inherently multithreaded. Events come in from the operating system and I have to process them concurrently.
The simplest way to deal with testing complex, multithreaded applicati...
How do I remove objects from a JavaScript associative array?
...array with a missing index).
When working with instances of Array, if you do not want to create a sparsely populated array - and you usually don't - then you should use Array#splice or Array#pop.
Note that the delete operator in JavaScript does not directly free memory. Its purpose is to remove pr...
Accept function as parameter in PHP
...Damn, I knew it was possible. Was going to answer, but wanted to find some documentation to link to first, and didn't know what it was called exactly. Ah well, now I'll know for when I need to do this as well. Thanks.
– Rob
Apr 23 '10 at 17:01
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What exactly do “u” and “r” string flags do, and what are raw string literals?
... form-feeds, and so on. In normal string literals, each backslash must be doubled up to avoid being taken as the start of an escape sequence.
This syntax variant exists mostly because the syntax of regular expression patterns is heavy with backslashes (but never at the end, so the "except" clause ...