# Virtual DOM 2

# Virtual DOM 2

by jihoon kim

HTML

<div id="root"></div>

Babel + JSX

/** @jsx h */

function h(type, props, ...children) {
  return { type, props, children };
}

function createElement(node) {
  if (typeof node === 'string') {
    return document.createTextNode(node);
  }
  const $el = document.createElement(node.type);
  node.children
    .map(createElement)
    .forEach($el.appendChild.bind($el));
  return $el;
}

const a = (
  <ul class="list">
    <li>item 1</li>
    <li>item 2</li>
  </ul>
);

const $root = document.getElementById('root');
$root.appendChild(createElement(a));