Named parameters: Difference between revisions

IfYou youjust want thespecify external parameterfollowed name to match theby local parameter name, you prefix the name with a #.

If you do not want the caller to specify parameter names, explicitly use <code>_</code> as external parameter name:

<lang Swift>func isGreater(x:Int, _ y:Int) -> Bool {

Note that when you don't explicitly specify external parameter names, the behavior is different for functions, methods and initializers:

* For a function or method, the first parameter doesn't have an external parameter name by default (as if you used <code>_</code>) unless you specify it; the rest of the parameters automaticallyby default take the local parameter name as external parameter name if you don't specify one (as if you did <code>#</code>).

* For an initializer, all parameters automaticallyby default take the local parameter name as external parameter name if you don't specify one (as if you did <code>#</code>).