function - Swift 3 custom parameter types -


i'm sorry if has been asked before, can't find answer. create custom parameter types function.

typedef?/define type

direction {     lefttoright,     righttoleft };

function:

class func animatein (dir:direction) {     if dir = lefttoright     {         // animate left right     }     else     {         // animate right left     } }

call:

animatein (dir:lefttoright)

enum seems perfect candidate use. if plan have more cases in enum, switch statement seems more feasible inside function.

enum direction {     case lefttoright, righttoleft }  class func animatein(dir: direction){     switch dir{     case .lefttoright:         //do     case .righttoleft:         //do     } }

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