create react component class
class MyComponent extends React.Component{
constructor(props){
super(props);
};
render(){
return(
<div>
<h1>
My First React Component!
</h1>
</div>
);
}
};props in 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')
);props in class react
class MouseTracker extends React.Component {
constructor(props) {
super(props);
this.handleMouseMove = this.handleMouseMove.bind(this);
this.state = { x: 0, y: 0 };
}
handleMouseMove(event) {
this.setState({
x: event.clientX,
y: event.clientY
});
}
render() {
return (
<div style={{ height: '100vh' }} onMouseMove={this.handleMouseMove}>
<h1>Move the mouse around!</h1>
<p>The current mouse position is ({this.state.x}, {this.state.y})</p>
</div>
);
}
}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')
);pass props in react
/* 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>;
}
}React js props
function App() {
return (
<div className="App">
<NewComponent name="Ariful Islam Adil" profession="Web-Developer"></NewComponent>
</div>
);
}
function NewComponent(props) {
return (
<div className="test-class">
<h1>Name: {props.name}</h1>
<h3>Profession: {props.profession}</h3>
</div>
)
}
export default App;Copyright © 2021 Codeinu
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