Question

我使用“ Formik”库实现表单

我有此代码：

import { useFormik } from 'formik';
import * as yup from 'yup';
import FInput from './FInput/FInput';

const Form = () => {
    const {handleSubmit, values, handleChange} = useFormik({
      initialValues: {
          username: '',
          email: '',
          password: '',
          confirm_password: '',
      },
        validationSchema: yup.object().shape( schema: {
          username: yup.string()                            // the error here
           .required('This field is required'),
          email: yup.string()
           .required('This field is required')
           .email('This field is required'),
          password: yup.string()
           .required('This field is required')
           .min(6, 'This password is too short')
           .max(30, 'This passwors is too long'),
        confirm_password: yup.string()
        .oneOf([yup.ref(key:'password'), null])
        .required('This field is required'),                                    
      }),
      onSubmit: (formValues) => {
          console.log('submit', formValues);
      },    
    });
    
   return (
   <form className="fform" onSubmit={handleSubmit}>
       <FInput
         label="username"
         id="username" 
         inputProps={{
           name:'username',
           value: values.username,
           onChange: handleChange,
       }}
       />
      <FInput
         label="email"
         id="email" 
         inputProps={{
           name:'email',
           value: values.email,
           onChange: handleChange,
           type: 'email',
       }}
       />
       <FInput
         label="password"
         id="password" 
         inputProps={{
           name:'password',
           value: values.password,
           onChange: handleChange,
           type:'password',
       }}
       />
       <FInput
         label="Confirm password"
         id="confirm_password" 
         inputProps={{
           name:'confirm_password',
           value: values.confirm_password,
           onChange: handleChange,
           type:'password',
       }}
       />
       <button type="submit">Submit Form</button>
   </form>
   );
};

export default Form;

我有错误：

第18:25行：分析错误：意外的保留类型字符串

18 |用户名：yup.string（）

顺便说一句，username不会在文本编辑器中以彩色突出显示。如何解决错误？我已经看了很多遍代码了，无法理解导致错误的原因。请帮助解决此问题。

Answer 1

object.shape API将其中包含字段的对象作为参数。

Docs

Formik的Yup定义必须为：

validationSchema: yup.object().shape({
  username: yup.string()                            
           .required('This field is required'),
  email: yup.string()
           .required('This field is required')
           .email('This field is required'),
  password: yup.string()
           .required('This field is required')
           .min(6, 'This password is too short')
           .max(30, 'This passwors is too long'),
  confirm_password: yup.string()
        .oneOf([yup.ref(key:'password'), null])
        .required('This field is required'),   
})

为什么在Formik中创建验证时出现错误？

1 个答案: