title: What's the difference between "super()" and "super(props)" in React when using es6 classes?
body: <p>When is it important to pass <code>props</code> to <code>super()</code>, and why?</p>
  
  <pre><code>class MyComponent extends React.Component {
    constructor(props) {
      super(); // or super(props) ?
    }
  }
  </code></pre>