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How to combine class and ID in CSS selector?
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There's nothing wrong with combining an id and a class on one element, but you shouldn't need to identify it by both for one rule. If you really want to you can do:
#content.sectionA{some rules}
You don't need the div in front of the ID as others have suggested.
In general, CSS ...
SortedList, SortedDictionary and Dictionary
...d analog, but if order of elements is required, e.g. to print them, Sorted one is chosen.
Src: http://people.cs.aau.dk/~normark/oop-csharp/html/notes/collections-note-time-complexity-dictionaries.html
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How to add an image to a JPanel?
...dle exception...
}
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(image, 0, 0, this); // see javadoc for more info on the parameters
}
}
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The differences between .build, .create, and .create! and when should they be used?
...st a wee bit shorter
I think .build is mostly an alias for .new. It works one way in Rails 3 and another way in Rails < 3.x
The most important part, however, is that these methods can be called through an association (has_many, etc.) to automatically link the two models.
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How to visualize an XML schema? [closed]
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nice one, runs even with latest Mono-MDK (4.0) on OSX. Exactly what I was looking for
– Erich Eichinger
Jul 22 '15 at 10:05
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Navigation bar show/hide
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This isn't something that can fit into a few lines of code, but this is one approach that might work for you.
To hide the navigation bar:
[[self navigationController] setNavigationBarHidden:YES animated:YES];
To show it:
[[self navigationController] setNavigationBarHidden:NO animated:YES];
Docu...
Precision String Format Specifier In Swift
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This is unnecessarily complicated. realityone's answer works and is much more concise.
– Steven Marlowe
Dec 20 '14 at 5:41
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Check if current directory is a Git repository
...ld either wrap that in a function or use it in a script.
Condensed into a one line condition suitable for bash and zsh
[ -d .git ] && echo .git || git rev-parse --git-dir > /dev/null 2>&1
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How to reload apache configuration for a site without restarting apache
I have edited the variable AllowOverride for one of my websites in sites-enabled directory. How do I reload the new configuration without restarting apache? Is it possible?
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Multiple commands in an alias for bash
...ately, but your example looks like the second command depends on the first one being exiting successfully. You may want to try a short-circuit evaluation in your alias:
alias lock='gnome-screensaver && gnome-screensaver-command --lock'
Now the second command will not even be attempted ...