Imagine that you are building a Bitcoin wallet. You want to give your users an overview of their balance, and you want them to see how many Euros it corresponds to. Create a new Webpack template with vue init webpack and npm install vuex. Create a new src/store/index.js file and write the following inside it:
import Vue from 'vue'import Vuex from 'vuex'Vue.use(Vuex)const store = new Vuex.Store({ state: { bitcoin: 600, rate: 1000, euro: 600000 }})export default store
This code is prone to errors. The first error can be a miscalculation of the Euro amount if we don't get the multiplication right. The second kind of error can be that we tell the user the bitcoin and euro balance during a transaction, resulting in a stale and ...
