Vuex $store properties not reactive when using computed property

Question

I have a Vuex store, which I\'m injecting into my instance:

import store from \'../store\';

const mainNav = new Vue({
  el: \'#main-nav\',
  store,
  compon         


        

Answer 1

This was my problem.

  const store = new Vuex.Store({
    state: {
      isTrackPlaying: false,
    },
  ...
  });

I forgot to set the initial state and now it is reactive.