Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Hi Monks!

Im trying to make a calculation inside a loop and work with the results after the loop has ended. In this example im creating an array (@matrix_numbers) with all values of the hash of hashes( $matrix->{$key}->{$key2}). As it is a problem with global and local variables i dont think is important to describe whats inside those variables.
When i try to print the array after the loop has ended im getting nothing.. the array is empty..
any ideas why is this happening and how can i avoid this?
thank you all!
foreach my $key (@aminos){ #used to create an array with all values of + the matrix foreach my $key2 (@aminos){ @matrix_numbers = $matrix->{$key}->{$key2}; } } print @matrix_numbers;

In reply to local and global variable problem by madM

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (2)
As of 2023-02-05 11:01 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I prefer not to run the latest version of Perl because:







    Results (31 votes). Check out past polls.

    Notices?