Using a Reference to the Form Control Elements. #Get Form Control Elements By Their Names We can access the form controls by using the value in the element's name attribute, for example, in the following way: const handleSubmit = (event) => { event.preventDefault(); const emailI...
handleSubmit=e=>{ const {username}=this.state;if(username&&username.length>0){//调用父组件的onAddUser方法将值username传递给父组件this.props.onAddUser(this.state.username); } e.preventDefault(); }; selectHandle=(e)=>{//将当前选择的用户编号传给父组件this.props.onSetCurrentId(e.target.id)...
data:包含父级 <form> 正在提交的数据;如果没有进行提交或没有父级 <form>,它将为 null。 method:字符串,可以是 'get' 或 'post'。表示父级 <form> 使用 GET 或 POST HTTP 方法 进行提交。默认情况下,<form> 将使用 GET 方法,并可以通过 method 属性指定。 action:一个传递给父级 <form> 的 action...
}, [counter])// 登录functionhandleSubmit() {// form 是 FormInstance。// getFieldsValue - 获取一组字段名对应的值,会按照对应结构返回constformData = form.getFieldsValue();// 如果显示了“验证码”却没有输入,提示if(codeVisible && !formData.captcha)returnmessage.error('请输入验证码');// 登录...
1、HTML form action 先来看一段简单的代码 代码语言:javascript 代码运行次数:0 复制 Cloud Studio代码运行 <form id="form"method="get">First name:<input type="text"value="Jake"name="fname">Last name:<input type="text"value="Ma"name="lname"><input type="submit"value="提交"></form> ...
View Source on GitHub View Demo React是什么? React是一个JavaScript库 - 最受欢迎的库之一,在GitHub上超过100,000星星。 React不是一个框架(不像Angular,定位是框架)。 React是Facebook的开源项目。 React用于在前端构建用户界面UI。 React是MVC (Model View Controller)应用的View层。
importReact, {Component}from"react";import{Form,Input,Button}from"antd";constFormItem=Form.Item;classCustomFormextendsComponent{ handleFormSubmit =(values) =>{consttitle = values.title;constcontent = values.content;console.log(title, content, values); };render() {return(<div><FormonFinish={(...
functionMyForm(){return(<form><label>Enter your name:<inputtype="text"/></label></form>)}constroot=ReactDOM.createRoot(document.getElementById('root'));root.render(<MyForm/>); Run Example » This will work as normal, the form will submit and the page will refresh. ...
npm install react-hook-form Quickstart import{useForm}from'react-hook-form';functionApp(){const{register,handleSubmit,formState:{errors},}=useForm();return(<formonSubmit={handleSubmit((data)=>console.log(data))}><input{...register('firstName')}/><input{...register('lastName',{required:...
React Hook Form 的核心是 useForm 钩子和 register 方法 import { useForm } from "react-hook-form"; function MyForm() { const { register, handleSubmit, formState: { errors } } = useForm(); const onSubmit = data => console.log(data); return ( <form onSubmit={handleSubmit(onSubmit...