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How do I add the contents of an iterable to a set?
...er but not both. But in a dynamically typed language where it's sometimes difficult to read the code and know the types of objects flying around, I feel hesitant to use these operators. Someone who doesn't recognize them (or perhaps doesn't even realize that Python allows for operators like these) c...
Select all text inside EditText when it gets focus
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I just learned that this does not work, if in the EditText xml there is a </requestFocus> tag inserted by the UI builder.
– machtnix
Jul 2 '13 at 20:51
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How to use SSH to run a local shell script on a remote machine?
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If Machine A is a Windows box, you can use Plink (part of PuTTY) with the -m parameter, and it will execute the local script on the remote server.
plink root@MachineB -m local_script.sh
If Machine A is a Unix-based system,...
Difference between addSubview and insertSubview in UIView class
What is the difference between addSubview and insertSubView methods when a view is added programmatically?
4 Answers
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An example of how to use getopts in bash
... ;;
*)
usage
;;
esac
done
shift $((OPTIND-1))
if [ -z "${s}" ] || [ -z "${p}" ]; then
usage
fi
echo "s = ${s}"
echo "p = ${p}"
Example runs:
$ ./myscript.sh
Usage: ./myscript.sh [-s <45|90>] [-p <string>]
$ ./myscript.sh -h
Usage: ...
Which is the fastest algorithm to find prime numbers?
...t of primes:
http://www.bigprimes.net/archive/prime/
If you just have to know if a certain number is a prime number, there are various prime tests listed on wikipedia. They are probably the fastest method to determine if large numbers are primes, especially because they can tell you if a number is ...
How to find out where a function is defined?
...@EHerman I don't think you can find callers of a function with reflection. If you could it probably wouldn't work well for this because PHP files tend to be included on demand, and so you would likely not have all the code loaded which does call the function.
– Tom Haigh
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javascript window.location in new tab
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but what if your browsers has blocked settings on popup? this will not wok.
– pregmatch
Aug 5 '17 at 11:01
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Why compile Python code?
...uiring compilation, the .pyc file is almost invariably smaller. Especially if you comment a lot. One of mine is 28419 as .py, but only 17879 as .pyc -- so load time is better as well. Finally, you can precompile top level scripts this way: python -m compileall myscript.py
– fyn...
Using the rJava package on Win7 64 bit with R
...A_HOME, so consider that. I have not revisited this issue recently to know if all the steps below are still necessary.)
Here is some quick advice on how to get up and running with R + rJava on Windows 7 64bit. There are several possibilities, but most have fatal flaws. Here is what worked for me:
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