js empty() vs remove()

转自：jQuery empty() vs remove()

• empty() will remove all the contents of the selection.
• remove() will remove the selection and its contents.

<div>
    <p><strong>foo</strong></p>
</div>

$('p').empty();  // --> "<div><p></p></div>"

// whereas,
$('p').remove(); // --> "<div></div>"