const NProgress = require('nprogress'); NProgress.configure({ trickleSpeed: 500, showSpinner: false }); const root = document.getElementsByTagName('html')[0]; module.exports = { start: () => { root.classList.add('progress'); NProgress.start(); }, done: () => { root.classList.remove('progress'); NProgress.done(); }, set: val => { NProgress.set(val); } };