I don’t need to wast time and money learning what Strings are if what I need to learn and understand are delegates. I always found it a waste of money to buy a 40h course that teaches me how to make 15 apps, but won’t tell me why and what I need to make a custom class for example.
It’s frustrating when I spend 60% of my work hours searching for examples that fit my needs.
I kinda knew what optionals were and Xcode usually tells me when to use them, but I didn’t know why to use them. And after watching the first 2 videos [of the optionals module] I was able to make a request to my web service using what I saw on your video.