Implementation of element multiple form validation

     const formName = ['tableForm1', 'tableForm2', 'tableForm3']
      const validates = (item) => {
        return new Promise((resolve, reject) => {
          if (!this.$refs[item]) {
            resolve()
            return false
          }
          this.$refs[item].validate((valid) => {
            if (valid) {
              resolve()
            } else {
              reject(new Error('Verification is incorrect'))
            }
          })
        })
      }
      Promise.all(formName.map(item => validates(item))).then(() => {
        console.log('success')
      }).catch(() => {
        console.log('failed')
      })
    }
  }

  <div class="home">
    <el-form :model="tableForm1" ref="tableForm1" :rules="rules1" label-width="100px" >
      <el-form-item label="Price" prop="price">
        <el-input v-model.number="tableForm1.price" autocomplete="off"></el-input>
      </el-form-item>
    </el-form>

    <el-form :model="tableForm2" ref="tableForm2" :rules="rules2" label-width="100px" >
      <el-form-item label="age" prop="age">
        <el-input v-model.number="tableForm2.age" autocomplete="off"></el-input>
      </el-form-item>
    </el-form>

    <el-form :model="tableForm3" ref="tableForm3" :rules="rules3" label-width="100px" >
      <el-form-item label="Name" prop="name">
        <el-input v-model.number="tableForm3.name" autocomplete="off"></el-input>
      </el-form-item>
    </el-form>

    <el-button type="primary" @click="submitForm">Submit</el-button>
    <el-button @click="resetForm">Reset</el-button>
    
  </div>
</template>

<script>
export default {
  name: 'Home',
  data () {
    return {
      tableForm1: {
        price: ''
      },
      tableForm2: {
        age: ''
      },
      tableForm3: {
        name: ''
      },
      rules1: {
        price: [{ required: true, message: 'Price cannot be empty', trigger: 'blur' }]
      },
      rules2: {
        age: [{ required: true, message: 'Age cannot be empty', trigger: 'blur' }]
      },
      rules3: {
        name: [{ required: true, message: 'Name cannot be empty', trigger: 'blur' }]
      }
    }
  },
  methods: {
    resetForm () {
      this.$refs.tableForm1.resetFields()
      this.$refs.tableForm2.resetFields()
      this.$refs.tableForm3.resetFields()
    },
    submitForm () {
      const formName = ['tableForm1', 'tableForm2', 'tableForm3']
      const validates = (item) => {
        return new Promise((resolve, reject) => {
          if (!this.$refs[item]) {
            resolve()
            return false
          }
          this.$refs[item].validate((valid) => {
            if (valid) {
              resolve()
            } else {
              reject(new Error('Verification is incorrect'))
            }
          })
        })
      }
      Promise.all(formName.map(item => validates(item))).then(() => {
        console.log('success')
      }).catch(() => {
        console.log('failed')
      })
    }
  }
}
</script>