Lightgallery methods
This is just a demonstration of how to use lightgallery methods. You can find more methods here
HTML structure
<div id="methods">
<a href="img/img1.jpg">
<img src="img/thumb1.jpg" />
</a>
<a href="img/img2.jpg">
<img src="img/thumb2.jpg" />
</a>
...
</div>
Javascript
var $methods = $('#methods');
var slide = '<a href="img/img2.jpg">' +
'<img src="img/thumb2.jpg" />' +
'</a>';
$methods.lightGallery();
$('#appendSlide').on('click', function() {
$methods.append(slide);
$methods.data('lightGallery').destroy(true);
$methods.lightGallery();
});