swift - Compare three values for equality

Question

Does anybody know of a shortcut to test whether three numbers are the same? I know this works:

if number1 == number2 && number2 == number3 {

}

But I would like something cleaner, such as;

if number1 == number2 == number3 {

}

It's quite important as I'm comparing a lot of different values.

Answer 1

You could use a set

if Set([number1, number2, number3]).count == 1 {
    ...

though I'd argue it isn't as transparent as multiple if clauses