Manipulations with vector objects (intersection, union, etc.) in JavaScript. How?

Question

JavaScript

Good afternoon,
I have 2 contours given by a tag in an svg file, I need to get a shape that is the intersection of the given shapes.
You need to do this in JavaScript. What libraries can you use?

Answer 1

Boolean operations for two-dimensional shapes .
If suddenly anyone needs ... theory .

Answer 2

If you can use ready-made libraries, then why not take something like box2d-js ?
Or, if your emphasis is not on physics but on beauty, then d3js , or pick up something more suitable.