Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Re: array question

by kennethk (Abbot)
on Jun 30, 2010 at 13:54 UTC ( [id://847338]=note: print w/replies, xml ) Need Help??


in reply to array question

I assume by skipping the first element, you mean $array[0], not $array[1]. I also not that you should read Writeup Formatting Tips to keep your array indices from being linkified.

There is no generic loop structure that just skips the first element. You can however use loop control like next to skip undesirable elements:

my $skip = 0; for my $i (0 .. $#array) { next if $i == $skip; #process }

You can also you array slices in order to feed restricted sections of your array to a foreach loop:

for (@array[1 .. $#array]) { #process }

or if you have no need for the loop itself, you can use the slice with a direct assignment:

my @new_array = @array[1 .. $#array]; or if you meant skipping $array[1]

my @new_array = @array[0, 2 .. $#array];

You can do more advanced list preprocessing with map and grep. After all, TIMTOWTDI.

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://847338]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others contemplating the Monastery: (2)
As of 2024-04-26 07:06 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found