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

Re^3: Warning while using ternary operator

by AnomalousMonk (Canon)
on Dec 16, 2013 at 23:15 UTC ( #1067386=note: print w/ replies, xml ) Need Help??

in reply to Re^2: Warning while using ternary operator
in thread Warning while using ternary operator

But what does the syntactically correct statement
    $expression ? $var = "foo" : $var = "bar";
actually do?

>perl -wMstrict -le "for my $expression (0, 1) { my $var = ''; $expression ? $var = 'foo' : $var = 'bar'; print qq{if \$expression is $expression, \$var is '$var'} } " if $expression is 0, $var is 'bar' if $expression is 1, $var is 'bar'

It seems the statement is just an expensive equivalent to the statement
    $var = 'bar';
The reason why is left as a exercise for simonz (after the recommended perusal of perlop :)

Comment on Re^3: Warning while using ternary operator
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1067386]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (3)
As of 2016-02-09 01:46 GMT
Find Nodes?
    Voting Booth?

    How many photographs, souvenirs, artworks, trophies or other decorative objects are displayed in your home?

    Results (295 votes), past polls