Creating a circular value slider in CSS and JS?

Question

css

The task was set to implement a "circular value controller".
Something like this example
So that you can touch inside the circle and when you turn left or right, a certain value changes.
Tell me if this element has a name: spinner or what is it?
Are there any libraries that implement this element?
Perhaps some examples of implementations?

Answer 1

Tadam:
anthonyterrien.com/knob
Google knob if it doesn't fit with this plugin
:)