Swift make method parameter mutable?

Question

How can I deal with this error without creating additional variable?

func reduceToZero(x:Int) -> Int {
    while (x != 0) {
        x = x-1            //         


        

Answer 1

There are some cases where we dont ned to use inout

We can use something like this if you want that changes/scope to be only inside the function:

func manipulateData(a: Int) -> Int {
    var a = a
    // ...
}