Re: Unexpected Output

[Your Mother]

Please use the $string = @arr ? 'False' : 'True'; idiom cdarke offered. $#arr is (so I say) a poor style choice to use anywhere (in general) and both confusing and potentially error prone here (as nvivek notes).

[k_manimuthu]

Dear All - Thanks a lot for your suggestion and solutions.
Thanks to introduce some new things to me. Specially for ...

$string = ($#arr == -1 ) ? 'True' : 'False';