how to know what data is in props react code example
Example 1: 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 2: 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>;
}
}