diff --git a/examples/custom-build/nuxt.config.js b/examples/custom-build/nuxt.config.js
index 7f63c66e5c..1a69cc77b3 100644
--- a/examples/custom-build/nuxt.config.js
+++ b/examples/custom-build/nuxt.config.js
@@ -7,8 +7,8 @@ module.exports = {
       app: 'app.[chunkhash].js' // default: nuxt.bundle.[chunkhash].js
     },
     vendor: ['lodash'],
-    extend (config, { dev }) {
-      if (dev) {
+    extend (config, { isDev }) {
+      if (isDev) {
         config.devtool = 'eval-source-map'
       }
       const urlLoader = config.module.rules.find((loader) => loader.loader === 'url-loader')
diff --git a/examples/i18n/plugins/i18n.js b/examples/i18n/plugins/i18n.js
index 81293fb7a7..e4859aadc9 100644
--- a/examples/i18n/plugins/i18n.js
+++ b/examples/i18n/plugins/i18n.js
@@ -3,7 +3,7 @@ import VueI18n from 'vue-i18n'
 
 Vue.use(VueI18n)
 
-export default ({ app, isClient, store }) => {
+export default ({ app, store }) => {
   // Set i18n instance on app
   // This way we can use it in middleware and pages asyncData/fetch
   app.i18n = new VueI18n({
diff --git a/examples/spa/pages/about.vue b/examples/spa/pages/about.vue
index d13eba5deb..ed137ad491 100644
--- a/examples/spa/pages/about.vue
+++ b/examples/spa/pages/about.vue
@@ -7,9 +7,9 @@
 
 <script>
 export default {
-  asyncData ({ isServer }) {
+  asyncData () {
     return {
-      name: (isServer ? 'server' : 'client')
+      name: (process.server ? 'server' : 'client')
     }
   }
 }
diff --git a/examples/with-cookies/plugins/cookies.js b/examples/with-cookies/plugins/cookies.js
index ee23ccbc8b..145baaec12 100644
--- a/examples/with-cookies/plugins/cookies.js
+++ b/examples/with-cookies/plugins/cookies.js
@@ -11,14 +11,14 @@ export const getCookies = (str) => {
 ** Executed by ~/.nuxt/index.js with context given
 ** This method can be asynchronous
 */
-export default ({ isServer, req }, inject) => {
+export default ({ req }, inject) => {
   // Inject `cookies` key
   // -> app.$cookies
   // -> this.$cookies in vue components
   // -> this.$cookies in store actions/mutations
   inject('cookies', new Vue({
     data: () => ({
-      cookies: getCookies(isServer ? req.headers.cookie : document.cookie)
+      cookies: getCookies(process.server ? req.headers.cookie : document.cookie)
     }),
     methods: {
       set(...args) {
diff --git a/examples/with-feathers/pages/about.vue b/examples/with-feathers/pages/about.vue
index 2dcf808b30..e54d1db1ff 100644
--- a/examples/with-feathers/pages/about.vue
+++ b/examples/with-feathers/pages/about.vue
@@ -7,9 +7,9 @@
 
 <script>
 export default {
-  asyncData ({ req, isServer }) {
+  asyncData () {
     return {
-      name: req ? 'server' : 'client'
+      name: process.server ? 'server' : 'client'
     }
   }
 }