问题描述
Yup验证不起作用,我也尝试过类似import Yup from 'yup'
的方法,但是仍然不起作用..,当我创建一个没有YUP的简单验证函数时,它运行良好。但是当我使用YUP时,验证无效。
添加了表单组件
import React from 'react';
import { useFormik } from 'formik';
import * as Yup from 'yup';
const initialValues = {
name : "",surname : "",address : ""
}
const validateSchema = Yup.object({
name: Yup.string().required('This Field is required'),surname: Yup.string().required('This Field is required'),address: Yup.string().required('This Field is required')
});
const onSubmit = values =>{
console.log('FormData->',values);
}
function Form() {
const formik = useFormik({
initialValues,onSubmit,validateSchema
})
return (
<div className="container x col-md-4 col-md-offset-4" >
<form onSubmit={formik.handleSubmit} >
<div className="form-group">
<input autoComplete="off" onBlur={formik.handleBlur} onChange={formik.handleChange}
value={formik.values.name} name="name" className="name form-control-lg" placeholder="Enter A Name" />
<small>
{formik.touched.name && formik.errors.name ? <div className="error"> {formik.errors.name} </div> : null}
</small>
</div>
<div className="form-group">
<input autoComplete="off" onBlur={formik.handleBlur} onChange={formik.handleChange}
value={formik.values.surname} name="surname" className="surname form-control-lg" placeholder="Enter A Surname" />
<small> { formik.touched.surname && formik.errors.surname ? <div className="error"> {formik.errors.surname} </div> : null} </small>
</div>
<div className="form-group">
<input autoComplete="off" onBlur={formik.handleBlur} onChange={formik.handleChange} value={formik.values.address}
name="address" className="address form-control-lg" placeholder="Enter A Address" />
<small> {formik.touched.address && formik.errors.address ? <div className="error"> {formik.errors.address} </div> : null} </small>
</div>
<button className="btn btn-danger" >Submit</button>
</form>
</div>
)
}
export default Form;
解决方法
此处的有效选项是{
"hostname": "mydomain.com","androidScheme": "https"
}
而不是validationSchema
。只需设置正确的一个:
validateSchema
,
要使用 formik 和 yup,首先要执行 npm install yup 和 npm install formik。如果您的 yarn 用户然后执行 yarn add formik 和 yarn add yup。
然后按照这个代码。
import {Formik} from 'formik';
import * as yup from 'yup';
//functional component am using
export const Auth = () => {
const initialFormValue ={
email: '',password: '',};
const SignInSchema = yup.object().shape({
email: yup.string().email('Invalid Email').required('Email is Required'),password: yup.string().min(5,'Too Short').required('Password is Required'),})
<Formik initialValues={initialFormValue} validationSchema={SignInSchema}
onSubmit={values => console.log(values)}>
{({values,errors,touched,handleChange,handleBlur,handleSubmit,isSubmitting,isValid}) => (
<>
<input name='email' type='email' handleChange={handleChange} value=
{values.email} onBlur={handleBlur} label='Email' />
{errors.email && touched.email ? (<Error>{errors.email}</Error>): null}
<input name='password' type='password' handleChange={handleChange} value=
{values.password} onBlur={handleBlur} label='Password' />
{errors.password && touched.password ? (<Error>{errors.password}</Error>):
null}
<button onClick={handleSubmit} type="submit">Send</button>
</>
) }
</Formik>
)}
你不需要在formik内部定义初始值<Formik initialValues={email: '',password: ''}> </Formik>
我希望这对您有所帮助,谢谢。