MultiwayTreeZipper

This library was created with the goal of allowing a multiway tree to be navigated and updated.

I ran into the problem when designing a tree UI control to use with The Elm Architecture. I realized that to keep track of the state in the model for things like whether a node is selected or expanded, I needed a way to update specific nodes through actions.

Run tests (from a cloned repo)

npm install -g elm
npm install -g elm-test
elm-test