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What is the use case of noop [:] in bash?
...hen the shell syntax requires a command but you have nothing to do.
while keep_waiting; do
: # busy-wait
done
The : builtin dates all the way back to the Thompson shell, it was present in Unix v6. : was a label indicator for the Thompson shell's goto statement. The label could be any text, so :...
passing argument to DialogFragment
...um", num);
f.setArguments(args);
return f;
}
And get the Args like this
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments().getInt("num");
...
}
See the full example here
http://developer.android.com/referenc...
Converting string to byte array in C#
...
If you already have a byte array then you will need to know what type of encoding was used to make it into that byte array.
For example, if the byte array was created like this:
byte[] bytes = Encoding.ASCII.GetBytes(someString);
You will need to turn it back into a string li...
How to execute a raw update sql with dynamic binding in rails
I want to execute one update raw sql like below:
8 Answers
8
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Java 8 stream's .min() and .max(): why does this compile?
Note: this question originates from a dead link which was a previous SO question, but here goes...
5 Answers
...
Given a DateTime object, how do I get an ISO 8601 date in string format?
...
WayneWayne
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Add text to Existing PDF using Python
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I know this is an older post, but I spent a long time trying to find a solution. I came across a decent one using only ReportLab and PyPDF so I thought I'd share:
read your PDF using PdfFileReader(), we'll call this input
cr...
How to get ALL child controls of a Windows Forms form of a specific type (Button/Textbox)?
... x. I'm pretty sure I saw that code once in the past that used something like this:
27 Answers
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Can I 'git commit' a file and ignore its content changes?
...ormation is stored in a file called devtargets.rb which is used in our rake build tasks. I don't want developers to clobber each other's devtargets file, though.
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Why are all fields in an interface implicitly static and final?
...s defined in an Interface are implicitly static and final . The idea of keeping fields static makes sense to me as you can't have objects of an interface but why they are final (implicitly)?
...