Chartjs-Chart.js dinamically populate data in Oracle Application Express

I do not know if these instructions to create these arrays works. Could try to use console.log in these values to check if works?

var BUDGET1 =[document.getElementById("P79_BUDGET1_AC").value]
var BUDGET2 =[document.getElementById("P79_BUDGET2_AC").value]
console.log(BUDGET1);
console.log(BUDGET2);
var ACTUAL1 =[document.getElementById("P79_ACTUAL1_AC").value]
var ACTUAL2 =[document.getElementById("P79_ACTUAL2_AC").value]
console.log(ACTUAL1);
console.log(ACTUAL2);

*You can execute this code on console. On chrome press F12, go to console.

Look at this post to see how convert a string with commas to array. Convert string with commas to array