Which is a valid way to extract the size of an array in Perl?

89. Which is a valid way to extract the size of an array in Perl?

  1. _len(@array_name)
  2. @array_name.length()
  3. $size = scalar @array_name
  4. All of these

Answer: C) $size = scalar @array_name

Explanation:

The valid way to extract the size of an array in Perl is:

    $size = scalar @array_name 

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