react-class-based-component-with-state.js

class Counter extends React.Component {
  constructor() {
    super();
    
    // define the internal state of the component
    this.state = {name: 'rajat'}
  }
  
  render() {
    return (
      <div>
        {this.state.name}
      </div>
    );
  }
}

// Usage:
// In your react app: <Counter />