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How to avoid warning when introducing NAs by coercion
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In general suppressing warnings is not the best solution as you may want to be warned when some unexpected input will be provided.
Solution below is wrapper for maintaining just NA during data type conversion. Doesn't require any package.
as.num = function(x, na.st...
How to Define Callbacks in Android?
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+1 for the best answer. I like the Callback version better because you may not necessarily have access to the data needed by Runnable.run() at the time that you construct it
– Kirby
Jun 30 '16 at 1...
What is the difference between null and undefined in JavaScript?
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ha ha ha ... this is the best the explanation that i have ever seen! cool!
– Akbar Mirsiddikov
May 1 at 15:36
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Make a link in the Android browser start up my app?
... the browser will try to launch when clicked. To build such a scheme, the best way is to just write the code to construct the Intent you want launched, and then print the result of intent.toUri(Intent.URI_INTENT_SCHEME).
You can use an action with this intent for to find any activity supporting th...
XPath OR operator for different nodes
...ing language but natural language interprets them slightly different. It's best to remove ambiguity when discussing issues related to them. Furthermore, with XPath it's best not to think of your result as being a or b, but rather that it could be located by a or b. Logical or means it could be locat...
How do I determine the size of my array in C?
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The sizeof "trick" is the best way I know, with one small but (to me, this being a major pet peeve) important change in the use of parenthesis.
As the Wikipedia entry makes clear, C's sizeof is not a function; it's an operator. Thus, it does not requ...
Why should I care that Java doesn't have reified generics?
...he following isn't possible and there are many cases where it would be the best solution:
public void my_method(List<String> input) { ... }
public void my_method(List<Integer> input) { ... }
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How to navigate through textfields (Next / Done Buttons)
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This is probably the best answer here.
– daspianist
Jan 15 '15 at 23:06
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How to benchmark efficiency of PHP script
I want to know what is the best way to benchmark my PHP scripts. Does not matter if a cron job, or webpage or web service.
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How to deal with persistent storage (e.g. databases) in Docker
...ker volume prune
Docker 1.8.x and below
The approach that seems to work best for production is to use a data only container.
The data only container is run on a barebones image and actually does nothing except exposing a data volume.
Then you can run any other container to have access to the da...