The core part of the Vuex store is in store.js . It is as follow:

import Vue from 'vue'
import Vuex from 'vuex'
const store = new Vuex.Store({
state: {
count: 0
mutations: {
increment(state) {
reset(state) {
state.count = 0;
disappoint(state) {
state.count = 9;
getters: {
getCount: state => {
return state.count
export default store;

Then in each component, you call store.commit with the name of the function in mutations to change state.count . For example, in City.vue , I have the following methods block:

methods: {
next() {
disappoint() {

These 2 functions will change state.count when called, which the latest value gets propagated back to any component that has this block:

computed: {
count() {
return store.state.count;

like Home.vue . Since Home.vue is where the page components are conditionally displayed with this block:

<div v-if="continent && country && region">
<where-continent v-if="count == 0"></where-continent>
<continent v-if="count == 1" :continent="continent"></continent>
<where-country v-if="count == 2"></where-country>
<country v-if="count == 3" :country="country"></country>
<where-region v-if="count == 4"></where-region>
<region v-if="count == 5" :region="region"></region>
<where-city v-if="count == 6"></where-city>
<city v-if="count == 7" :city="city"></city>
<win v-if="count == 8"></win>
<disappoint v-if="count == 9"></disappoint>

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