basic react tutorials code example

Example 1: react tutorial for beginners

class Board extends React.Component {
  constructor(props) {   
    super(props);  
    this.state = {   
      squares: Array(9).fill(null),
    }; 
  }
  renderSquare(i) {
    return <Square value={i} />;
  }
}

Example 2: react tutorial

renderSquare(i) {
    return <Square value={i} />;
  }