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Beginning RxSwift - Part 16: Challenge: Create | Ray Wenderlich Videos

#1

In this challenge, you'll use filtering operators to create a utility that looks up phone numbers in a sample data set.


This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4743-beginning-rxswift/lessons/16
#3

For anybody using RxSwift 5: toArray() does now convert an Observable into a Single.
So we have to use the onSuccess handler instead of the onNext handler in the .subscribe method

//..
       .toArray()
        .subscribe( onSuccess: { numbers in
            let phone = phoneNumber(from: numbers )
            
            if let contact = contacts[phone] {
                print("Dailing \(contact) (\(phone))...")
            } else {
                print("Contact Not Found")
            }
        }
//..
#4

@thorben Thank you for sharing the solution - much appreciated! :]