feat: add :pid token

[ganesh3367]

Refactors the codebase to use const/let instead of var and adds a :pid token support.

[UlisesGascon]

Hi @ganesh3367!

At the moment, Morgan still supports older Node.js versions such as 0.8, where the const keyword is not available. Would you be able to update the PR to isolate only the :pid-related changes?

It would also be very helpful if you could include some additional context in the PR description to explain the motivation behind this change.

Thanks for your support and contributions!

[ganesh3367]

Hello Sir, thank you for reviewing my PR! Sure, I will update the PR to isolate only the :pid-related changes and remove anything that depends on newer Node.js features. I will also add a clear explanation in the PR description about the motivation behind this change. Also, I want to actively contribute to open-source projects, and any guidance from you would be extremely helpful for me to grow. I really appreciate your support and feedback. Thanks again!

…

On Thu, 4 Dec 2025 at 12:37, Ulises Gascón ***@***.***> wrote: *UlisesGascon* left a comment (expressjs/morgan#329) <#329 (comment)> Hi @ganesh3367 <https://github.com/ganesh3367>! At the moment, Morgan still supports older Node.js versions such as 0.8, where the const keyword is not available. Would you be able to update the PR to isolate only the :pid-related changes? It would also be very helpful if you could include some additional context in the PR description to explain the motivation behind this change. Thanks for your support and contributions! — Reply to this email directly, view it on GitHub <#329 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BL46S47NBT2W55QQFRHZP73377MSVAVCNFSM6AAAAACNTN2YMGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMMJQGYYTKMRVGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[ganesh3367]

Yes i did update the PR to isolate only the :pid-related changes

[ganesh3367]

Hello

[jonchurch]

Looks good, thank you. I pushed a change to add pid to the docs, and reverted a stray whitespace diff in the test file.