It was Friday, October 10, 2003 when Jeff Westman took the soap box, saying:
: Question:
:
: If I have an array and want to take the first element off and return it, I
: would do it like this:
:
: return (@myArray) ? shift(@myArray) : undef;
:
: How would I do similarly with a hash? I have something like this:
:
:
: return (exists $myHash{$val1} ) ? $Hash{$val2} : undef;
:
: But these leaves the value in the hash. I know I can save the value first,
: then DELETE it, and then return it. But I'd like to do it all in one step.
When you call delete(), it deletes the element from the hash *and*
reurns that element's value. This is very handy.
return (exists $myHash{$val1}) ? delete $myHash{$val2} : undef;
Casey West
--
"Stocks have reached what looks like a permanently high plateau."
-- Irving Fisher, Professor of Economics, Yale University, 1929.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
