Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Re^3: how to find the how many elements are present in an array

by dsheroh (Prior)
on Jan 19, 2014 at 10:03 UTC ( #1071174=note: print w/replies, xml ) Need Help??

in reply to Re^2: how to find the how many elements are present in an array
in thread how to access each element in an array?

There is no '4' element in $array[0] for you to access. $array[0] is the string "4601". It is not an array (or an array reference), exactly like the error message you quoted says:
Can't use string ("4601") as an ARRAY ref
Because it is not an array, it has no elements for you to access.

Perhaps you're coming from C and assuming that strings are arrays of characters? If so, then you need to understand that they aren't. In Perl, a string is a basic data type. A single value. Not an array of characters.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1071174]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (5)
As of 2018-06-24 19:27 GMT
Find Nodes?
    Voting Booth?
    Should cpanminus be part of the standard Perl release?

    Results (126 votes). Check out past polls.