React js props

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>;
  }
}

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>
    );
  }
}

Source: reactjs.org

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;

Similar codes

1 vote207 views1 answer
Picker change event react native
Javascript React
0 vote256 views1 answer
Background image not loading from a link react
Javascript React
11 votes226 views3 answers
React Hook "useState" is called in function "cardState" which is neither a React function component or a custom React Hook function
Javascript React
0 vote197 views1 answer
React-simple-star-rating
Javascript React
8 votes222 views1 answer
Professional react projects
Javascript React
64 votes235 views6 answers
React js router
Javascript React
0 vote220 views1 answer
React make setstate synchronous
Javascript React
0 vote223 views1 answer
Settimeout react native focus text input
Javascript React
7 votes245 views2 answers
Uuid v4 react
Javascript React
0 vote231 views1 answer
React conditional if localhost
Javascript React