How to place variables inside button target selector

Question

I have a button that I add a target to, the selector contain a variable.
Can I add the variable into the selector without receiving an error?
Thank you in advance.

//this cause a selector error when run
self.save.addTarget(self, action: #selector(self.saveItems(dataToSave)), forControlEvents: .TouchUpInside)

Answer 1

Create an additional function to use it as an action selector argument

func helperFunc() {
    self.saveItems(dataToSave)
}

And then add it

self.save.addTarget(self, action: #selector(self.helperFunc), forControlEvents: .TouchUpInside)