使用ajv验证json架构时获取错误类型/值

npm install ajv

const Ajv = require('ajv');

const ajv = new Ajv();

const schema = {
  type: 'object',
  properties: {
    name: { type: 'string' },
    age: { type: 'number' }
  },
  required: ['name', 'age']
};

const validate = ajv.compile(schema);

const data = {
  name: 'John',
  age: 'twenty'
};

const valid = validate(data);

if (!valid) {
  const errors = validate.errors;
  for (const error of errors) {
    console.log('错误类型:', error.keyword);
    console.log('错误值:', error.data);
  }
}