Dear Consultants,
Am an ABAPer for the last 2.5 years, am planning to learn SAP FIORI and move into SAP app development. So, as an ABAPer what all the inputs i must have before starting to learn Fiori. Am considering myself as a rookie in FIORI now, hence i made a small R&D and found out that it requires Javascript/HTML & CSS knowledge, so please enlighten me whether i should start learning Javascript/HTML & CSS prior moving to learn FIORI app development?