What is the proper way to check if a string is empty in Perl?

Question

I\'ve just been using this code to check if a string is empty:

if ($str == \"\")
{
  // ...
}

And also the same with the not equals operato

Answer 1

To check for an empty string you could also do something as follows

if (!defined $val || $val eq '')
{
    # empty
}