Question

By default, all variables in Perl are global variables; that is, they are accessible from every part of the program, unless you declare with "my" to create a "lexical" (local) varable.

Select one:

True

False

Answer 1

Answer: Hey!! Kindly finds your solution below. Let me know if any issue.Thanks.

It’s a TRUE statement. In Perl, we use keyword my to create a lexical or local variable that we can use within a block.

Ex.

Use strict;

Use warnings;

If (3>4)

{

   my $score = 50; #local variable declaration with my keyword

print “$Score\n”;

}

Without declaration using variable are global variables by default in Perl, they can be used anywhere in program. (my keyword is not used to declare)

Ex.

use warnings;

If (3>4)

{

      $score = 50; #no declaration with my keyword

print “$Score\n”;

}

print “$Score\n”; #accessible outside the block