filteredArrayUsingPredicate does not exist in swift Array

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Swift arrays have a .filter method that takes a closure — this will do it:

let filteredArray = arrayOfUsers.filter() { $0.userID == "1" }

Closures can be simplified in a variety of ways. The full declaration of the closure would look more like this:

var filteredArray = arrayOfUsers.filter( { (user: UserDetails) -> Bool in
        return user.userID == "1"
    })

The difference between the two is that the first is using trailing closure syntax, shorthand argument names, type inference, and implicit return. You can read more about closures in Apple’s Swift documentation.

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