Best way to access adjacent components / fields

Question

I am looking for a way to access components / field that are either in the same items array as the accessing one or even only in a same parent items array (the last one is j

Answer 1

Alternately, for your case of getting the next element in a container, you can use the nextSibling or prevSibling. All components have these methods. It would be a little less walking around the DOM structure. They also allow for a selector argument.

They are described in the docs here.