functional component react example
Example 1: class in react
class App extends Component {
constructor() {
super()
this.state = {
name: "Sally",
age: 13
}
}
render() {
return (
{this.state.name}
{this.state.age} years old
)
}
}
Example 2: create react component class
class MyComponent extends React.Component{
constructor(props){
super(props);
};
render(){
return(
My First React Component!
);
}
};
Example 3: functional component react
function Welcome(props) {
return Hello, {props.name}
;
}
function App() {
return (
);
}
ReactDOM.render(
,
document.getElementById('root')
);
Example 4: create functional component react
import React from 'react'; const App = () => { const greeting = 'Hello Function Component!'; return ;}; const Headline = ({ value }) => {value}
; export default App;
Example 5: functional components react
function Comment(props) {
return (
{props.author.name}
{props.text}
{formatDate(props.date)}
);
}
Example 6: react class and props example
import React, { Component } from 'react'
import './TourList.scss';
import Tour from '../Tour/Tour';
import { tourData } from './tourData';
export default class TourList extends Component {
state={
tours:tourData
}
render() {
const {tours}=this.state
return (
{tours.map(tour=>{
return ;
})}
)
}
}
//------------------------------------------------------
import React, { Component } from 'react';
import './Tour.scss';
export default class Tour extends Component {
state={
showinfo:false,
name:""
}
handleInfo=()=>{
this.setState({
showinfo:!this.state.showinfo,
name:"kumar"
})
}
render() {
const {id,city,name,info,img}=this.props.tour
return (
{name}
{city}
info{""}
{this.state.showinfo && {info}{this.state.name}
}
)
}
}