Does anyone have a good and simple calendar core library in mind?

Question

JavaScript

We need to make a calendar for one of the projects and I know 100% that with each iteration we will develop its functionality.
I don’t want to take any ready-made solutions, because. from experience it usually ends up with crutches.
Some kind of kernel is needed to form the correct grid of dates and days of the week.
You also need the functionality to move to the previous/next day/month/year.

I take care of all the drawing of the calendar in the DOM and interaction with the interface, the library only needs to generate the correct grid for matching days of weeks and dates.

The project does not use assemblies and any frameworks.

Answer 1

There is , though the author rewrote it in TS, if you need sorts in JS, then this version.