Perl switch

by Online Tutorials Library July 14, 2014

Perl Switch Statement

The perl switch statement is used to execute the code from multiple conditions. There is no case or switch statement in perl. Instead we use ‘when’ in place of case and ‘given’ in place of case.

The syntax of switch statement in perl language is given below:

  given(expression){    when (value1)  {//code to be executed;}    when (value2)  {//code to be executed;}   when (value3)  {//code to be executed;}  default  {//code to be executed if all the cases are not matched.}      }    

Perl Switch Example

Let’s see a simple example of c language switch statement.

  use feature qw(switch say);  print “Enter a Numbern “;  chomp( my $grade = <> );  given ($grade) {      when (’10’) { say ‘It is 10′ ;}      when (’20’) { say ‘It is 20′ ;}      when (’30’) { say ‘It is 30’ ;}      default { say ‘Not 10, 20 or 30’;}  }  

Output:

Enter a Number  10  It is 10

Enter a Number  55  'Not 10, 20 or 30'

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