rective and inject its controller as the fourth argument to the linking function. The
<code>require</code> property can be a string, an array or an object:</p>
<ul>
<li>a <strong>string</strong> containing the name of the directive to pass to the linking function</li>
<li>an <strong>array</strong> containing the names of directives to pass to the linking function. The argument passed to the
linking function will be an array of controllers in the same order as the names in the <code>require</code> property</