Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

Re: loop surprise

by toolic (Bishop)
on Apr 03, 2018 at 13:35 UTC ( #1212252=note: print w/replies, xml ) Need Help??


in reply to loop surprise

This is documented in Compound Statements
If the variable is preceded with the keyword my, then it is lexically scoped, and is therefore visible only within the loop. Otherwise, the variable is implicitly local to the loop and regains its former value upon exiting the loop. If the variable was previously declared with my, it uses that variable instead of the global one, but it's still localized to the loop. This implicit localization occurs only in a foreach loop.

The variable does change value within the loop, as you can see with print:

for $i (1..10) { last if $i == 7; print "in loop $i\n"; }

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://1212252]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (None)
    As of 2022-01-26 06:23 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      In 2022, my preferred method to securely store passwords is:












      Results (69 votes). Check out past polls.

      Notices?