Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

if statements

by root (Scribe)
on Nov 05, 1999 at 03:58 UTC ( #946=perltutorial: print w/ replies, xml ) Need Help??

if statements test a control statement to see whether it is true or false. else and elsif clauses can also be tagged on the back.
#your basic if if($value==1){ print "value is equal to 1\n"; } #your basic if/else if($value==1){ print "value is equal to 1\n"; } else{ print "value is not equal to 1\n"; } #your basic if/elsif/else if($value==1){ print "value is equal to 1\n"; } elsif($value==2){ print "value is equal to 2\n"; } elsif($value==3){ print "value is equal to 3\n"; } else{ print "value is not equal to 1,2, or 3\n"; }
Unless statements offer you the opposite functionality. If the control statement evaluates to false then the statements inside the block are executed.

Replies are listed 'Best First'.
Re: if statements
by Mr. Muskrat (Canon) on Jun 16, 2002 at 14:36 UTC
    Something else that should be mentioned... You can reverse if statements:

    ++$node if $votes > 0;
      Please supply an example of your reverse if statement syntax... PL
        That is a reversal of the "usual" if at the front of the statement.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: perltutorial [id://946]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (7)
As of 2016-06-29 21:35 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My preferred method of making French fries (chips) is in a ...











    Results (387 votes). Check out past polls.