Here are four very simple/clean syntaxes to choose from:
-
{ my %h = ( x=>5, y=>8 );
while ( my ($r,$s) = each %h ) {
...
}
}
-
for ({ x=>5, y=>8 }) {
while ( my ($r,$s) = each %$_ ) {
...
}
}
-
for (paired( x=>5, y=>8 )) {
my ($r,$s) = @$_;
...
}
where paired is defined as
sub paired {
my @pairs;
push @pairs, [ shift, shift ] while @_;
return @pairs;
}
-
paired {
my ($r,$s) = @_;
...
} ( x=>5, y=>8 );
where paired is defined as
sub paired(&@) {
my $cb = shift;
my @rv;
push @rv, $cb->(shift, shift) while @_;
return @rv;
}
-
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-
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-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
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horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
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