data loading via url get all values

Hi, im loading data via url into a hidden combo box. After that i want to store all the values of the combo into an array. But this is not working. What i want to do is to load data via url directly into an array. Is this possible? If yes how does this work. I use java controller with Spring annotation ResourceMapping

you need to load data using ajax call https://docs.webix.com/api__refs__ajax.html

Thank you intregal.I will try that