Developers are not a student, we are not going to do write an exam. So no need to memory programming functions and method names. Programmers should know what are the feature are there in programming language.
Developers really not made any new creations, we are doing hight lever configuration for end users.
Like a android mobile user want to reduce his/her screen brightness and font level.
That’s why we are here to help you. You can take reference from following technologies.