This is a demo for vue validater. Data won't save unless pass date validate.

validator.vue

<div class="login">
  <div class="login-wrap">
    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="0px" class="demo-ruleForm">
      <el-form-item prop="username">
          <el-input v-model="ruleForm.username" placeholder="username"></el-input>
      </el-form-item>
      <el-form-item prop="password">
          <el-input type="password" placeholder="password" v-model="ruleForm.password" @keyup.enter.native="submitForm('ruleForm')"></el-input>
      </el-form-item>
      <div class="login-btn">
          <el-button type="primary" @click="submitForm('ruleForm')">登录</el-button>
      </div>
      <p style="font-size:12px;line-height:30px;color:#999;">Tips : 用户名和密码随便填。</p>
    </el-form>
  </div>
</div>

<script>
export default {
  data() {
    return {
      ruleForm: {
        username: '',
        password: ''
      },
      rules: {
        username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' }]
      }
    }
  },
  methods: {
    submitForm(formName) {
      const self = this
      self.$refs[formName].validate(valid => {
        if (valid) {
          localStorage.setItem('username', self.ruleForm.username)
          self.$router.push('/home')
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>