I am trying to build an app that randomly selects an item from a list (fruits) based on a given probability. So, what it should be doing is the following:

Press Button
Returns “Hi you won a Apple”

I read this previous post which suggests to use the math.js plugin.

I think I found the math.js formula I need which should be this
math.pickRandom(array, weights)

However, I have no idea where to create a list of fruits and how to assign them a probability of being selected.

After that, how do you link this simple workflow to a button?