SIMPLE UI5 AND FIORI ARTICLE

The proper Way to get started on learning UI5 would be to stick to under movie sequence on Anubhav Trainings. You usually begin with HTML5, CSS, JS, and jQuery after which you can shift to SAP UI5 Framework and Fiori Improvement with MVC. In the last stage find out OData Companies to the Gateway server. All this with no copy-paste of more info code