ui-dropdown/vendors/popper/docs/_includes/example40-code.html

A custom dropdown element

<h2 id="example4" tabindex="0">Shifted poppers</h2>
<p>
    Shift your poppers on start or end of its reference element side.
</p>

{% highlight javascript %}
var shiftStart = new Popper(referenceElement, shiftStartPopper, {
    placement: 'left-start',
});

var shiftEnd = new Popper(referenceElement, shiftEndPopper, {
    placement: 'bottom-end',
});
{% endhighlight %}