Why does a function call require the parameter name in Swift?

Question

I have this Function in a class:

func multiply(factor1:Int, factor2:Int) -> Int{
    return factor1 * factor2
}

I try to call the functi

Answer 1

since you used calculator.multiply() in the example code I'm assuming this function is a method of the calculator object.

Swift inherits a lot of things from objective-c and this is one of them:

When in objective-c you would do (hypothetically):

[calculator multiply:@9834 factor2:@2321];

the equivalent in Swift is:

calculator.multiply(9834, factor2:2321);