How to Check if String is Empty in Perl

How to Check if String is Empty in Perl ?

To check if a string is empty in Perl, you can use the length function.

In this example,

$str1 = "";
$isEmpty = length($str1) == 0;
print "Is string empty: $isEmpty";

Is string empty: 1

In this example,

We create a variable named $str2 with a non-empty string value "Hello World".
We use the length function on $str2 to get the length of the string.
If the length is 0, the string is empty.
Finally, we print the result to the console.

$str2 = "Hello World";
$isEmpty = length($str2) == 0;
print "Is string empty: $isEmpty";

Is string empty: 0

In this tutorial, we learned How to Check if String is Empty in Perl language with well detailed examples.