[edflsafoiewq]

If you don't have named parameters, you can fall back to variables

  var taxInvoice = false
  var sendEmail = true
  RaiseInvoice(taxInvoice, sendEmail)

It's obvious, but people tend not to do it.

[wrs]

Sadly there is nothing that can tell you that you got those arguments backwards.

[edflsafoiewq]

Point taken. But you can check the declaration of RaiseInvoice and see if the names match. If you had RaiseInvoice(false, true) then you really wouldn't know.

[wrs]

Totally a matter of taste, but for an equal level of protection and less vertical waste I’d rather just do

    RaiseInvoice(/*taxInvoice*/ false, /*sendEmail*/ true)