nuxt.config.js

export default {
  mode: 'spa',
  /*
  ** Headers of the page
  */
  head: {
    title: process.env.npm_package_name || '',
    meta: [
      {charset: 'utf-8'},
      {name: 'viewport', content: 'width=device-width, initial-scale=1'},
      {hid: 'description', name: 'description', content: process.env.npm_package_description || ''}
    ],
    link: [
      {rel: 'icon', type: 'image/x-icon', href: '/favicon.ico'}
    ]
  },
  /*
  ** Customize the progress-bar color
  */
  loading: {color: '#fff'},
  /*
  ** Global CSS
  */
  css: ['element-ui/lib/theme-chalk/index.css'],
  /*
  ** Plugins to load before mounting the App
  */
  plugins: [{
    src: '~plugins/elementUI',
    ssr: true,
  }
  ],
  /*
  ** Nuxt.js dev-modules
  */
  devModules: [],
  /*
  ** Nuxt.js modules
  */
  modules: [
    // Doc: https://bootstrap-vue.js.org/docs/
    'bootstrap-vue/nuxt',
  ],
  /*
  ** Build configuration
  */
  build: {
    /*
    ** You can extend webpack config here
    */
    extend(config, ctx) {
    },
    vendor:['element-ui'],   //防止element-ui被打包多次

  }
}