3 Swift & IOS 10 training resources which are better?

Friends, good day!
I really want to become an ios developer.
The essence of the question is in what order should learn the language?
I also bought the course mark price on udemy 10 iOS & Swift 3: From Beginner to Paid Professional , we should start with Swift or better still Objective-C for the immature brain?
Can someone tell me in which order should study ios development?

PS about the Stanford course know))
July 2nd 19 at 18:00
1 answer
July 2nd 19 at 18:02
Learn swift. Ideally, it is necessary to know both, but better to start with swift
And best of all Stanford course
The official tutorial from Apple + course. Nothing else)

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