Swift 2 introduced the guard keyword, which could be used to ensure that various data is configured ready to go. An example I saw on this website demonstrates an submitTapped function:
func submitTapped() {
guard username.text.characters.count > 0 else {
return
}
print("All good")
}
I am wondering if using guard is any different than doing it the old fashioned way, using an if condition. Does it give benefits, which you could not get by using a simple check?
