Re: searching for clear ways to overwrite the empty string

s/^\z/?/ for $longvariablename;
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Comment on Re: searching for clear ways to overwrite the empty string Download Code

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Re^2: searching for clear ways to overwrite the empty string by graff (Chancellor) on Apr 20, 2016 at 00:38 UTC
That's neat -- and it could be done like this to make sure that both "undef" and "empty string" are handled without warnings: `$_ //= "?" or s/^\z/?/ for ( $this_variable, $that_variable, $another_ +variable );` [download] (UPDATE: But I'm inclined to think that when there's a problem with too many long variable names, it might mean that those variable names really ought to be keys in a hash.) (updated again to fix the mis-typed operator in the snippet.)	[reply] [d/l]
Re^3: searching for clear ways to overwrite the empty string by Anonymous Monk on Apr 20, 2016 at 00:54 UTC
Parens not needed.	[reply]