Learn Perl from Scratch/

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Solution Review: Even or Odd

Solution Review: Even or Odd

Let's see the detailed solution review of the challenge given in the previous lesson.

We'll cover the following...

Let’s look at the solution of the last lesson before getting into the explanation:

$number = 5;  # change value to run for your desired case
$temp = -1;
if($number % 2 == 0){
  $temp = 0;
}
else{
  $temp = 1;
}

Explanation

For a given $number, we used the if statement to check its modulus with 2. If it is 0 then the $temp will be set to 0, otherwise $temp will be set to 1.

The % operator returns the remainder of two numbers. For instance, 5 % 2 is 1 because 5 divided by 2 leaves a remainder of 1.