Haxe iteration on dynamic

Question

I have a type variable Dynamicand I know for sure that one of its fields, let's call it a, is actually an array. But when I write

var d : Dynamic = getDynamic();
for (t in d.a) {
}

I get a compilation error in the second line:

You cannot iterate over a dynamic value, please specify Iterator or Iterable

How can I make this compile?

Answer 1

Haxe cannot iterate over Dynamicvariables (as the compiler says).

You can get it working in several ways, where this one is probably the easiest (depending on your situation):

var d : {a:Array<Dynamic>} = getDynamic();
for (t in d.a) { ... }

You can also change Dynamicto the type of the contents of the array.

Answer 2

- :

var d = getDynamic();
var a: Array<Dynamic> = d.a;
for (t in a) { ... }