SwapAnimation Plugin

[chunhei37]

While I'm using the swap animation plugin, I found that when an item moves into an empty sortable container an uncaught TypeError will occur.

Uncaught TypeError: Cannot read property 'style' of undefined
at animate (plugins.js:322)
at lastAnimationFrame.requestAnimationFrame (plugins.js:300)

[kilianso]

I can confirm, that this is still an open bug. Here's a demo.
https://codepen.io/kilianso/pen/XWbYeWb

@owen-m1 is draggable still under active development or should i use sortablejs instead?

UPDATE

For those who still face this problem. Here is the same demo as above, but it uses sortablejs instead of draggable.

https://cdpn.io/kilianso/pen/KKpBOwm

[owen-m1]

@kilianso I haven't contributed to Draggable in a while as I haven't had time and it looks like no one else has either.

You can use SortableJS or you could use Draggable with this library I made which is an extraction of the animation code of SortableJS, called Animatum.