What are the underlying reasons to have provide jQuery with Node.js?

What are the underlying reasons to have provide jQuery with Node.js?

There is a node module jquery that can be run using npm install jquery  that can work in node.js environment.

JQUERY is a javascript libraries and it makes writing JavaScript easy and works well.

node.js is a platform for developing server side JavaScript.

What are the main usage scenario for jQuery with node.js?

What are the underlying reasons to provide such support?

I just want to understand the typical usages for this
Thank you in advance for any insights.