React active class on click

ActiveOnClick.js

import React from 'react';

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = { isToggledOn: false };

    this.toggleClass = this.toggleClass.bind(this);
  }

  toggleClass() {
    const currentState = this.state.isToggledOn;
    this.setState({ isToggledOn: !currentState });
  }

  render() {
    return (
      <div>
        <a
          onClick={this.toggleClass}
          className={this.state.isToggledOn ? 'some-class active' : 'some-class'}
          href="http://www.example.com">My awesome link
        </a>
      </div>
    );
  }
}

export default MyComponent;