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Emulate ggplot2 default color palette
...2's default color palette for a desired number of colors. For example, an input of 3 would produce a character vector of HEX colors with these colors:
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How to run cron job every 2 hours
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Just do:
0 */2 * * * /home/username/test.sh
The 0 at the beginning means to run at the 0th minute. (If it were an *, the script would run every minute during every second hour.)
Don't forget, you can check syslog to see if it ever actually ran!
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When to use pip requirements file versus install_requires in setup.py?
I'm using pip with virtualenv to package and install some Python libraries.
4 Answers
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What is the advantage of using async with MVC5?
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The async actions are useful only when you are performing I/O bound operations such as remote server calls. The benefit of the async call is that during the I/O operation, no ASP.NET worker thread is being used. So here's how the first example works:
When a request hits the ac...
What's the Android ADB shell “dumpsys” tool and what are its benefits?
I'm looking for the full list of ADB shell dumpsys commands with a full explanation of all of the commands.
4 Answers
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Groovy: what's the purpose of “def” in “def x = 0”?
In the following piece of code (taken from the Groovy Semantics Manual page ), why prefix the assignment with the keyword def ?
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What is the difference between 'java', 'javaw', and 'javaws'?
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The java tool launches a Java application. It does this by starting a Java runtime environment, loading a specified class, and invoking that class's main method.
The javaw command is identical to java, except that with javaw there is no associated console window. Use javaw when you don't ...
Making interface implementations async
I’m currently trying to make my application using some Async methods.
All my IO is done through explicit implementations of an interface and I am a bit confused about how to make the operations async.
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Should I use @EJB or @Inject
I have found this question: What is the difference between @Inject and @EJB but I did not get any wiser. I have not done Java EE before nor do I have experience with dependency injection so I do not understand what I should use?
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Do I need all three constructors for an Android custom view?
When creating a custom view, I have noticed that many people seem to do it like this:
6 Answers
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