An action is a one-time side effect. An action can be defined on a transition.
Add optional actions property on transition. When we have the break event in lit or unlit we fire an action as we transition to broken.
Actions called always go in order (true of Xstate as well):
- current state's
exit - transition actions
- next state's
entry
With toActionObject we noramlize our actions so each one is an object.