I used [axios] in a project and while I was reading the docs to learn how multiple interceptors work, I had to dig all the way into the tests and into the source code to finally understand it fully.
I had planned building the kata for
Number.parseInt() already a while ago.
Starting to work I discovered very quickly that this seemingly tiny kata is quite a
rabbit hole that offers a lot of things one can learn.
Especially about how things evolve in the spec and how to read the spec, fortunately
this is a pretty easy to read part of the spec.