Re: Question on syntax

As has been pointed out, the first line is different from the other two - it is printing the entire list at once whilst the other two are printing it one element at a time.

IMHO, as long as its not a one-liner you should do the following:

for my $number ( 1 .. 10 ) {
    print $number;
}
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This would allow you/someone else to more easily add more steps to the loop:

for my $number ( 1 .. 10 ) {
    $number *= $number;
    print $number, "\n";
}
[download]

Hope that helps

Smoothie, smoothie, hundre prosent naturlig!

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Re^2: Question on syntax by Porculus (Hermit) on Apr 23, 2008 at 20:41 UTC
This would allow you/someone else to more easily add more steps to the loop The "easy to add another line" thing is a bit of a red herring; any decent editor can convert a postfix `for` to a block `for` with a single keypress. The real reason to prefer block `for` is that it allows you to bind the loop variable to something other than `$_` (eg your `$number`), which often makes for more readable code.	[reply] [d/l] [select]

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Re^2: Question on syntax
by Porculus (Hermit) on Apr 23, 2008 at 20:41 UTC

This would allow you/someone else to more easily add more steps to the loop

The "easy to add another line" thing is a bit of a red herring; any decent editor can convert a postfix for to a block for with a single keypress.

The real reason to prefer block for is that it allows you to bind the loop variable to something other than $_ (eg your $number), which often makes for more readable code.

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