NodeJS : Why and when do we use response.end() and return response.end() in node.js?

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On Google, Search for "hows tech developer connect"

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
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Greetings, my name is Delphi.
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