nst the previous vnode tree and the existing DOM tree is modified only where needed to reflect the changes. Unchanged DOM nodes are not touched at all.</p>
<h4 id="replace-a-component"><a href="#replace-a-component">Replace a component</a></h4>
<p>Running <code>mount(element, OtherComponent)</code> where <code>element</code> is a current mount point replaces the component previously mounted with <code>OtherComponent</code>.</p>
<h4 id="unmount"><a href="#unmount">Unmount</a></h4>
<p>Using <code>m.mount(elem