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Regex to match only letters
...e declaration of characters you can use. You still need to declare howmany times this declaration has to be used: [A-Za-z]{1,2} (to match 1 or 2 letters) or [A-Za-z]{1,*} (to match 1 or more letters)
– KristofMols
Sep 1 '10 at 13:06
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Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...ss, and operate on its fields directly via unsafe get/put methods!
Compile time optimizations for JVM. HIgh performance VM using "magic", requiring low-level operations. eg: http://en.wikipedia.org/wiki/Jikes_RVM
Allocating memory, sun.misc.Unsafe.allocateMemory eg:- DirectByteBuffer constructor int...
How can I do division with variables in a Linux shell?
... ... do something that takes a while ...
sleep 71
end=`date +%s`
let deltatime=end-start
let hours=deltatime/3600
let minutes=(deltatime/60)%60
let seconds=deltatime%60
printf "Time spent: %d:%02d:%02d\n" $hours $minutes $seconds
Another simple example - calculate number of days since 1970:
let ...
Why doesn't C have unsigned floats?
I know, the question seems to be strange. Programmers sometimes think too much. Please read on...
12 Answers
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Why hasn't functional programming taken over yet?
... This is a good answer, but I think you overstate your case at times. Like Juliet said, although people might think of it as a name change, it really is a name replacement on a deeper level. And although functional programs might be harder for people to read (because it is a learned skil...
Change one value based on another value in pandas
...nd I was pointed in the direction of PANDAS. I am, however, having a hard time wrapping my head around how to process the data.
...
Call An Asynchronous Javascript Function Synchronously
... into a very synchronous codebase that is many thousands of lines long and time doesn't currently afford the ability to make the changes to "do it right." It hurts every fiber of my being, but reality and ideals often do not mesh. I know this sucks.
...
How do I create a new Swift project without using Storyboards?
... set all of their stored properties to an appropriate initial value by the time an instance of that class or structure is created. Stored properties cannot be left in an indeterminate state.
Properties of optional type are automatically initialized with a value of nil, indicating that the property i...
Pass variables to Ruby script via command line
...YAML file that gets parsed. That way you can have things that change every time on the command-line, and things that change occasionally configured outside your code. That separation of data and code is nice for maintenance.
Here are some samples to play with:
require 'optparse'
require 'yaml'
op...
JavaScript error (Uncaught SyntaxError: Unexpected end of input)
... man, I wish my VIM had caught that syntax error. I can't believe how much time I end up wasting sometimes with careless syntax errors.
– HeyWatchThis
Sep 12 '13 at 18:26
4
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