Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: list assignment to list in scalar context (boolean)

by tye (Cardinal)
on Nov 09, 2012 at 03:45 UTC ( #1003054=note: print w/ replies, xml ) Need Help??


in reply to list assignment to list in scalar context

List assignment in a scalar context returns the number of items in the right-hand side because that is extremely useful as a Boolean test, as shown in your own example:

while( my( $k, $v ) = each %h ) {

You wouldn't want that loop to terminate early just because one of the values in %h was false.

- tye        


Comment on Re: list assignment to list in scalar context (boolean)
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1003054]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (5)
As of 2014-09-18 03:41 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (105 votes), past polls