Re: A cleaner way of scoping variables

If it's short, use the trailing if ...
```
my $bar = "true" if $foo;
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```
If it's short and you have two options, use the trinary operator ...
```
my $bar = $foo ? "Winner!!!" : "Please play again.";
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```

If it's a longer block, it doesn't matter if you have one declaration line at the front. You can even use default values if you want.


my ( $foo, $bar, $baz, $wumpus );
# or
# my ( $foo, $bar, $baz, $wumpus ) = ( 5555, "Blossom Garden Rd", "San
+ Jose, CA", 95123 );

if ( $tiddly_rump ) {
    $foo ....
    $bar ....
    $baz ....
    $wumpus ....
}
[download]

That's not so bad, is it?

--
TTTATCGGTCGTTATATAGATGTTTGCA

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Re^2: A cleaner way of scoping variables by ysth (Canon) on Aug 10, 2004 at 01:43 UTC
If it's short, use the trailing if ... `my $bar = "true" if $foo;` [download] Nooooooooooooooooo! grep 5.8.1+ perlsyn for 'Here be dragons'.	[reply] [d/l]
Re^3: A cleaner way of scoping variables by bunnyman (Hermit) on Aug 10, 2004 at 14:39 UTC
So greppeth perlsyn: NOTE: The behaviour of a `my` statement modified with a statement modifier conditional or loop construct (e.g. `my $x if ...`) is undefined. The value of the `my` variable may be `undef`, any previously assigned value, or possibly anything else. Don't rely on it. Future versions of perl might do something different from the version of perl you try it out on. Here be dragons.	[reply] [d/l] [select]