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How to concatenate two strings to build a complete path
...r -p $SUBFOLD2
And if you want to use readline so you get completion and all that, add a -e to the call to read:
read -e -p "Enter a directory: " BASEPATH
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Display help message with python argparse when script is called without any arguments
... what I needed. One question, can this be applied to subcommands too? I usually just get ``Namespace(output=None)`. How can I trigger an error easily on ALL subcommands? I'd like to trigger an error there.
– Jonathan Komar
May 20 '16 at 7:43
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Regular expression to match a word or its prefix
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Square brackets are meant for character class, and you're actually trying to match any one of: s, |, s (again), e, a, s (again), o and n.
Use parentheses instead for grouping:
(s|season)
or non-capturing group:
(?:s|season)
Note: Non-capture groups tell the engine that it doesn...
How can I get PHPUnit MockObjects to return different values based on a parameter?
...ay('firstparam', 'secondparam', 'retval'),
array('modes', 'foo', array('Array', 'of', 'modes'))
)
)
);
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Check if a method exists
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You're looking for respondsToSelector:-
if ([foo respondsToSelector: @selector(bar)] {
[foo bar];
}
As Donal says the above tells you that foo can definitely handle receiving the bar selector. However, if foo's a proxy that forwards bar to some underlying object tha...
What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
...te path.
Converting from a path to a canonical path makes it absolute (usually tack on the current working directory so e.g. ./file.txt becomes c:/temp/file.txt). The canonical path of a file just "purifies" the path, removing and resolving stuff like ..\ and resolving symlinks (on unixes).
Also ...
Why can't static methods be abstract in Java?
.... static doesn't mean "not empty" -- that's just a consequence of Java not allowing static methods to be abstract. It means "callable on the class." (It should mean "callable only on the class" but that's another issue.) If Java supported abstract static methods I'd expect it to mean that the method...
How to exclude a module from a Maven reactor build?
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@SaM Actually, as of Maven 3.0.5 the Reactor will take in account the order in 'modules', although the order dictated by dependencies is of a higher priority.
– hellodanylo
Jul 29 '13 at 11:23
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Fix a Git detached head?
...ed HEAD
Run git branch tmp - this will save your changes in a new branch called tmp.
Run git checkout master
If you would like to incorporate the changes you made into master, run git merge tmp from the master branch. You should be on the master branch after running git checkout master.
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How to force HTTPS using a web.config file
...round Google and StackOverflow trying to find a solution to this, but they all seem to relate to ASP.NET etc.
9 Answers
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