pass props to react functional component code example
Example 1: create react component class
class MyComponent extends React.Component{
constructor(props){
super(props);
};
render(){
return(
<div>
<h1>
My First React Component!
</h1>
</div>
);
}
};
Example 2: functional component react
function Welcome(props) {
return <h1>Hello, {props.name}</h1>;
}
function App() {
return (
<div>
<Welcome name="Sara" /> <Welcome name="Cahal" /> <Welcome name="Edite" /> </div>
);
}
ReactDOM.render(
<App />,
document.getElementById('root')
);
Example 3: props in react app
/* PASSING THE PROPS to the 'Greeting' component */
const expression = 'Happy';
<Greeting statement='Hello' expression={expression}/> // statement and expression are the props (ie. arguments) we are passing to Greeting component
/* USING THE PROPS in the child component */
class Greeting extends Component {
render() {
return <h1>{this.props.statement} I am feeling {this.props.expression} today!</h1>;
}
}
--------------------------------------------
function Welcome(props) {
return <h1>Hello, {props.name}</h1>;
}
const element = <Welcome name="Sara" />;
ReactDOM.render(
element,
document.getElementById('root')
);
Example 4: 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 (
<section className="toulist">
{tours.map(tour=>{
return <Tour key={tour.id} tour={tour} />;
})}
</section>
)
}
}
//------------------------------------------------------
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 (
<div className="grid">
<article className="tour">
<div className="img-container">
<img
src={img}></img>
<span className="close-btn">
<i class="fa fa-window-close"></i>
</span>
</div>
<div className="info">
<div className="tour-info">
<h3>{name}</h3>
<h4>{city}</h4>
<h5>info{""}
<span class="fa fa-caret-square-down" onClick={this.handleInfo}></span></h5>
</div>
{this.state.showinfo && <p>{info}{this.state.name}</p>}
</div>
</article>
</div>
)
}
}
Example 5: class to functional component react
// convert a class component to a functional component
class MyComponent extends React.Component {
state: {
name: 'Bob'
}
render() {
return (
<p>Hello, my name is {this.state.name}</p>
);
}
}
const MyComponent = () => {
const [name, setName] = React.useState('Bob');
return (<p>Hello, my name is {name}</p>);
}