message: Change variable to valid as a better example
  Usually developers will just copy this lines of code so I suggest it is better to use proper variable names
  for good practice.
diff: @@ -59,8 +59,8 @@ export default {
  // ...
  methods: {
  onSubmit () {
  - this.$validator.validate().then(result => {
  - if (!result) {
  + this.$validator.validate().then(valid => {
  + if (!valid) {
  // do stuff if not valid.
  }
  });
  