Working with JSON – easier then you think

I guess we all had cases where we had to store some list of items as a string, which could easily be converted into array and back to string to be saved. That could be names, emails or list of IDs from a list (to make many-to-many relationship, for example). Sounds easy, hey, just concatenate with coma to add and remove item from the string, and just to simple Split() when need to have it as an array… and after few updates we end up with lots of extra comas 🙁 boooooooo

So all we have to do is to convert the string into array first, than add or remove item in array and convert it back to string.
But can we do it in one line? – sure we can 🙂

And here is an action under Add button:

And here is how we remove an item (onSelect of trash icon):

Want to have pure numbers in array values (integers etc)? – No problem:)

Its a short one, but took me a while to figure it out