4.4. Combining operators

Swift has two operators that let us combine multiple conditions. They are && (and), and || (or).

Let's look into an example:

let myAge = 24

if myAge >= 18 && myAge <= 65 {
    print("Eligible for the user study!")
}

if myAge < 18 || myAge > 65 {
    print("Not eligible!")
}

It means if myAge is more than or equal to 18 and less than or equal to 65, print "Eligible for the user study!"; if myAge is less than 18 or greater than 65, print "Not eligible!"