react FOrm data code example
Example 1: form in react
import React, { useState } from "react";
import "./styles.css";
function Form() {
const [firstName, setFirstName] = useState("");
const [lastName, setLastName] = useState("");
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
return (
<form>
<input
value={firstName}
onChange={e => setFirstName(e.target.value)}
placeholder="First name"
type="text"
name="firstName"
required
/>
<input
value={lastName}
onChange={e => setLastName(e.target.value)}
placeholder="Last name"
type="text"
name="lastName"
required
/>
<input
value={email}
onChange={e => setEmail(e.target.value)}
placeholder="Email address"
type="email"
name="email"
required
/>
<input
value={password}
onChange={e => setPassword(e.target.value)}
placeholder="Password"
type="password"
name="password"
required
/>
<button type="submit">Submit</button>
</form>
);
}
export default Form;
Example 2: react text input onchange
class NameForm extends React.Component {
constructor(props) {
super(props);
this.state = {value: ''};
this.handleChange = this.handleChange.bind(this);
this.handleSubmit = this.handleSubmit.bind(this);
}
handleChange(event) { this.setState({value: event.target.value}); }
handleSubmit(event) {
alert('A name was submitted: ' + this.state.value);
event.preventDefault();
}
render() {
return (
<form onSubmit={this.handleSubmit}>
<label>
Name:
<input type="text" value={this.state.value} onChange={this.handleChange} /> </label>
<input type="submit" value="Submit" />
</form>
);
}
}
Example 3: react how to pass the input target value
class NameForm extends React.Component {
constructor(props) {
super(props);
this.state = {value: ''};
this.handleChange = this.handleChange.bind(this);
}
handleChange(event) {
this.setState({value: event.target.value});
}
render() {
return (
<form>
<label>
Name:
<input type="text" value={this.state.value} onChange={this.handleChange} />
</label>
<input type="submit" value="Submit" />
</form>
);
}
}