Apple Developer Documentation Is Missing

Re:Apple Developer Documentation Is Missing by eugeniub on Monday October 28, 2019 @11:11AM (#21377662)

Strongly disagree with the "but worse" characteristic. As soon as you learn what "??" does, it's actually an improvement in readability in many cases. For example:

  nameLabel.text = user?.name ?? "Guest"

This, as opposed to:

  if let name = user?.name {
    nameLabel.text = name
  } else {
    nameLabel.text = "Guest"
  }

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Re:Apple Developer Documentation Is Missing by bdisnainc on Monday October 28, 2019 @11:48AM (#21377990)

That is because you apply pattern matching when it is not really useful here, on top of avoiding a simple ternary operator.

In some languages, you simply write:

    if (user)
      nameLabel.text = user.name;
    else
      nameLabel.text = "Guest";

Or:

    nameLabel.text = user.name if user else "Guest"

Or anything along those lines. Concise, clear, no need for an extra operator.

[ Parent | on HN ]