title: What does mean '...props' in ReactJS?
body: <p>What means ...props? the code is:</p>
  
  <pre><code>export default class NavItem extends React.Component {
  constructor() {
      super();
  }
  
  render() {
      const { router, index, to, children, ...props } = this.props;
      let isActive = false;
  
      if (router.isActive('./', true) &amp;&amp; index) {
          isActive = true
  </code></pre>
  
  <p><code>children</code> I suppose that is the children of the actual element, but <code>...props</code> what does it mean?</p>
  
  <p>Thank you.</p>