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Is there an opposite to display:none?
...lity: hidden is visibility: visible . Similarly, is there any opposite for display: none ?
14 Answers
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Signal handling with multiple threads in Linux
...ogram (that possibly has multiple threads) receives a signal, like SIGTERM or SIGHUP?
2 Answers
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Android: When should I use a Handler() and when should I use a Thread?
...en I need something to run asynchronously , such as a long running task or a logic that uses the network, or for whatever reason,
Starting a new Thread and running it works fine.
Creating a Handler and running it works as well.
What's the difference? When should I use each one?
What are the a...
Which gets priority, maxRequestLength or maxAllowedContentLength?
While changing the maximum allowed file size for upload I stumbled on those two settings.
2 Answers
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How can I stop redis-server?
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Either connect to node instance and use shutdown command or if you are on ubuntu you can try to restart redis server through init.d:
/etc/init.d/redis-server restart
or stop/start it:
/etc/init.d/redis-server stop
/etc/init.d/redis-server start
On Mac
redis-cli shutdown
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Difference between object and class in Scala
I'm just going over some Scala tutorials on the Internet and have noticed in some examples an object is declared at the start of the example.
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How do I give text or an image a transparent background using CSS?
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Either use a semi-transparent PNG image or use CSS 3:
background-color: rgba(255, 0, 0, 0.5);
Here's an article from css3.info, Opacity, RGBA and compromise (2007-06-03).
<p style="background-color: rgba(255, 0, 0, 0.5);">
<span>Hello, Wor...
How do I make class methods / properties in Swift?
Class (or static) methods in Objective-C were accomplished using + in declarations.
5 Answers
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Who is listening on a given TCP port on Mac OS X?
On Linux, I can use netstat -pntl | grep $PORT or fuser -n tcp $PORT to find out which process (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
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Using Emacs as an IDE
Currently my workflow with Emacs when I am coding in C or C++ involves three windows. The largest on the right contains the file I am working with. The left is split into two, the bottom being a shell which I use to type in compile or make commands, and the top is often some sort of documentation ...