solution of my problem adobe animate 2019

warm greetings from Indonesia
can I learn Adobe Animate 2019 easily, I'm just using it for the first time. and I find it difficult to find information on the use of scripts, which in my opinion is a high level. for example, it shows a comma (,) truncated string. for combobox components in adobe animate. Example of the string that I have defined in the variable:

var strPropertycombobox = "a, b";

After I select one of the strings in the combobox component, it is used as a reference to display the strings that are truncated based on comma (,). for the listbox component in adobe animate, like this the logic

if a =
var strPropertylistboxa = "10, 20";
returns a comma (,) truncated string. for listbox components in adobe animate
example
listbox
10
20

if b =
var strPropertylistboxb = "100, 200";
returns a comma (,) truncated string. for listbox components in adobe animate
example
listbox
100
200

and every line of string that is in the listbox after being cut into a line. when I hover the mouse over the value in the listbox, for example, my mouse points to string 10 then it displays shapes1 / particular image.

I am using Adobe Animate 2019 for the first time, if creating a web database is not the first time for me and I already understand a little about using css, html, java, json. but in adobe animate I am confused to set the layout of it all, I play on the html 5 canvas.

I ask for help, is there a simple example, or can you make a simple example. Thank you.