how to write statefull class in react
import React, {Component} from 'react'
class Pigeons extends Component {
constructor() {
super()
this.state = {
pigeons: []
}
}
render() {
return (
<div>
<p>Look at all the pigeons spotted today!</p>
<ul>
{this.state.pigeons.map(pigeonURL => {
return <li><img src={pigeonURL} /></li>
})}
</ul>
</div>
)
}
}class component react using state
import React, {Component} from 'react';
import './App.css';
import IconBar from './components/icon-bar';
import Events from './components/events';
class App() extends Component {
constructor(props) {
super(props)
this.state = {
mode: null
}
this.updateMode = this.updateMode.bind(this);
}
updateMode = (newMode) => {
this.setState({mode: newMode});
}
return (
<div className="App">
<h1 className="Title">ENAKS</h1>
<IconBar onUpdateMode={this.updateMode} mode={this.state.mode} />
<Events />
<div className="mainModeFrame"><p1>{this.state.mode}</p1></div>
</div>
);
}
export default App;
Add this to your knowledgeState on React class Component
class Example extends React.Component {
constructor(props) {
super(props);
this.state = {
count: 0
};
}
render() {
return (
<div>
<p>You clicked {this.state.count} times</p>
<button onClick={() => this.setState({ count: this.state.count + 1 })}>
Click me
</button>
</div>
);
}
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
