🐪 Perl Subroutines

Subroutines (aka subs) in Perl are reusable code blocks you can call by name — making your code cleaner and DRYer.

🖥️ Example 1: Basic Subroutine

Define with sub and call it by name.

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🖥️ Example 2: Subroutine with Parameters

Use @_ inside the sub to access arguments.

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🖥️ Example 3: Subroutine Returning a Value

Use return to send a result back to the caller.

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💡 Tip: In Perl, subroutine parameters are automatically stored in the @_ array.