Paul Harwood wrote:
>
> I am reading through a book on Objects and References and I don't
> understand this statement:
>
> $sum += $_ for split //;
>
> I thought a FOR statement needed to be in braces. How is it being used
> in this context?
Hi Paul.
In this instance 'for' is working as a statement 'modifier'. This
is from 'perldoc perlsyn':
Any simple statement may optionally be followed by a *SINGLE* modifier,
just before the terminating semicolon (or block ending). The possible
modifiers are:
if EXPR
unless EXPR
while EXPR
until EXPR
foreach EXPR
HTH,
Rob
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