how to get if a component is rendered reactks code example

Example 1: ternary operator react

render () {
  return (
    

      { //Check if message failed
        (this.state.message === 'failed')
          ? 
 Something went wrong 
 
          : 
 Everything in the world is fine 
 
      }
    
  );
}

Example 2: if else render react

render() {
  const isLoggedIn = this.state.isLoggedIn;
  return (
    

      {isLoggedIn ? (
        
      ) : (
        
      )}
    
  );
}