CGI/Perl Guide | Learning Center | Forums | Advertise | Login
Site Search: in

  Main Index MAIN
INDEX
Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN

Home: Perl Programming Help: Frequently Asked Questions:
How can I know how many entries are in a hash?

 



Jasmine
Administrator

Jan 19, 2001, 3:24 PM

Post #1 of 1 (2646 views)
How can I know how many entries are in a hash? Can't Post

(From the Perl FAQ)

How can I know how many entries are in a hash?

If you mean how many keys, then all you have to do is take the scalar sense of the keys() function:

Code
    $num_keys = scalar keys %hash;

In void context it just resets the iterator, which is faster for tied hashes.


 
 


Search for (options) Powered by Gossamer Forum v.1.2.0

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives