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Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
I have seen this sort of thing used a lot, but I think it is rather strange...
Wouldn't it be much clearer to say while(true) , or something along those lines?
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What does the exclamation mark mean in a Haskell declaration?
...Basically, it means that it must be evaluated to what's called "weak head normal form" when the data structure value is created. Let's look at an example, so that we can see just what this means:
data Foo = Foo Int Int !Int !(Maybe Int)
f = Foo (2+2) (3+3) (4+4) (Just (5+5))
The function f above...
jQuery & CSS - Remove/Add display:none
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To hide the div
$('.news').hide();
or
$('.news').css('display','none');
and to show the div:
$('.news').show();
or
$('.news').css('display','block');
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A html space is showing as %2520 instead of %20
...n your url already has a %20 in it, and gets urlencoded again, which transforms the %20 to %2520.
Are you (or any framework you might be using) double encoding characters?
Edit:
Expanding a bit on this, especially for LOCAL links. Assuming you want to link to the resource C:\my path\my file.html:...
Regular Expression to match string starting with “stop”
How do I create a regular expression to match a word at the beginning of a string. We are looking to match stop at the beginning of a string and anything can follow it.
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Set a cookie to never expire
...ocumentation on setting a cookie I see that I can set an expiration date for the cookie. You can set the cookie to expire at the end of the browser session or at some time in the future but I do not see a way to set the cookie to never expire. Is this even possible and how is this accomplished?
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Long-held, incorrect programming assumptions [closed]
I am doing some research into common errors and poor assumptions made by junior (and perhaps senior) software engineers.
19...
Simplest way to check if key exists in object using CoffeeScript
...y values: val in arr will test whether val is in arr.)
thejh's answer is correct if you want to ignore the object's prototype. Jimmy's answer is correct if you want to ignore keys with a null or undefined value.
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Check number of arguments passed to a Bash script
I would like my Bash script to print an error message if the required argument count is not met.
10 Answers
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How do I parse command line arguments in Bash?
...;
*) # unknown option
POSITIONAL+=("$1") # save it in an array for later
shift # past argument
;;
esac
done
set -- "${POSITIONAL[@]}" # restore positional parameters
echo "FILE EXTENSION = ${EXTENSION}"
echo "SEARCH PATH = ${SEARCHPATH}"
echo "LIBRARY PATH = ${LIBPATH}"
e...