What's the difference between custom class and file's owner setting in xib file?
<p>In a custom xib file, what's the difference between the two following setting methods shown in the images below?
<a href="https://i.stack.imgur.com/ziUZO.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/ziUZO.jpg" alt="enter image description here"></a></p>

<p><a href="https://i.stack.imgur.com/dKYVq.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/dKYVq.jpg" alt="enter image description here"></a></p>