oif condition inside jsx code example

Example 1: ternary operator react

render () {
  return (
    <div className="row">
      { //Check if message failed
        (this.state.message === 'failed')
          ? <div> Something went wrong </div> 
          : <div> Everything in the world is fine </div> 
      }
    </div>
  );
}

Example 2: login condition if and else in router dom of react jsx

let redirectToUrl;
      if ( not logged in ) //check condition
      {
        redirectToUrl = <Redirect to={loginPage}/>;
      }