alue. Note that this will
also be called when your bindings are initialized.</li>
<li><code>$doCheck()</code> - Called on each turn of the digest cycle. Provides an opportunity to detect and act on
changes. Any actions that you wish to take in response to the changes that you detect must be
invoked from this hook; implementing this has no effect on when <code>$onChanges</code> is called. For example, this hook
could be useful if you wish to perform a deep equality check, or to check a Date object, changes t