.</li>
</ul>
</li>
</ul>
</li>
</ul>
<h4 id="-require-"><code>require</code></h4>
<p>Require another directive and inject its controller as the fourth argument to the linking function. The
<code>require</code> takes a string name (or array of strings) of the directive(s) to pass in. If an array is used, the
injected argument will be an array in corresponding order. If no such directive can be
found, or if the directive does not have a controller, then an error is raised. The name can be prefixed with:</p>
<