async-validator.js数据校验器

npm i async-validator

// demo.mjs
// node(v16.14.0)
// import Schema from 'async-validator';
// fix: 文档给出的引入方式报错
import asyncValidator from 'async-validator';
const Validator = asyncValidator.default;
// 定义校验规则
const rules = {
  name: {
    type: 'string',
    required: true,
    validator: (rule, value) => value === 'muji',
  },
  age: {
    type: 'number',
    asyncValidator: (rule, value) => {
      return new Promise((resolve, reject) => {
        if (value < 18) {
          reject('too young'); // reject with error message
        } else {
          resolve();
        }
      });
    },
  },
};
const validator = new Validator(rules);
let data = { name: 'Tom', age: 16 };
validator
  .validate(data)
  .then(() => {
    // validation passed or without error message
    console.log('validate passed');
  })
  .catch(({ errors, fields }) => {
    console.log(errors, fields);
  });

[
  { message: 'name fails', fieldValue: 'Tom', field: 'name' },
  { message: 'too young', fieldValue: 16, field: 'age' }
] {
  name: [ { message: 'name fails', fieldValue: 'Tom', field: 'name' } ],
  age: [ { message: 'too young', fieldValue: 16, field: 'age' } ]
}

type
required
pattern
len
enum
min/max