Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re: Understanding Split and Join

by jwkrahn (Monsignor)
on Dec 28, 2006 at 13:23 UTC ( #592036=note: print w/replies, xml ) Need Help??


in reply to Understanding Split and Join

There are cases where it is equally easy to use a regexp in list context to split a string as it is to use the split function. Consider the following examples:
my @list = split /\s+/, $string; my @list = $string =~ /(\S+)/g;
In the first example you're defining what to throw away. In the second, you're defining what to keep. But you're getting the same results. That is a case where it's equally easy to use either syntax.

In your regexp example you don't need the parentheses, it will work the same without them.

If $string contains leading whitespace then you will NOT get the same results. To demonstrate examples that produce the same results:

my @list = split ' ', $string; my @list = $string =~ /\S+/g;

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://592036]
help
Chatterbox?
[Corion]: Likely the date of the release of the module
[Corion]: Yep, seems like that
[Perl300]: ok, thank you Corion
[Perl300]: I was researching few modules and was not sure about what that date indicates

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (9)
As of 2017-12-11 18:01 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    What programming language do you hate the most?




















    Results (310 votes). Check out past polls.

    Notices?