Is there a way to compare if two change sets are equal?

[whawker]

Hi, I'm working on a plugin that creates changesets.

I was wondering, is there any way to compare if two changesets are equal? (I'm thinking along the lines of the .eq() functions in ProseMirror model).

Basically, I was hoping to compare the plugins prevState with current state to determine whether to update decorations.

[marijnh]

It looks like this doesn't exist yet, but it should be rather straightforward to implement. I'd be open to a pull request that adds such a method.

[whawker]

Sure thing, any general advice?

Should comparing the fromA/fromB/toA/toB suffice? Also I suppose we could bail out quickly if the arrays are different lengths?

[marijnh]

You'd want to compare the spans too, I guess, and only return when the sets are entirely identical.