Newb Question: iterable Object like in JS/AS3

Haxe
#1

Hi, what´s the easiest way to get an iterable object as known from JS and AS3. I want to do this:

var obj = { foo:123, foo2:"somebar", boolfoo:false };
for (v in obj) {
trace(v, obj[v]);
}

thx

#2 
var obj = { foo:123, foo2:"somebar", boolfoo:false };
var objKeys = Reflect.fields(obj);
for (key in objKeys) {
    trace(key, Reflect.getProperty(obj, key));
}
1 Like
#3

Thanks flashup, but I don´t like to having to reflect the object every time I want to iterate it. Is there another Object type that would fit for Iteration like this?

#4 
var map:Map<String, Dynamic> = ["foo" => 123, "foo2" => "somebar", "boolfoo" => false];
for(key in map.keys()) {
    trace(key + " => " + map[key]);
}

[Reference]

1 Like
#5

Perhaps we could build iteration and array access into “openfl.utils.Object”? That could be nice.

Like this (if it was implemented):

var obj:Object = { foo:123, foo2:"somebar", boolfoo:false };
for (v in obj) {
   trace(v, obj[v]);
}
2 Likes
#6

That would be perfect for the AS3-crowd :smile:

#7

Thanks to a little help, this now works advertised :slight_smile:

1 Like
#8

So this is implemeted now?
Sorry, I´m not sure if I understand your post, I´m no native speaker :confused:

#9

Yes, it is now in the latest OpenFL release:

import openfl.utils.Object;

...

var data:Object = { hello: "World", cool: 100 };

for (field in data) {
    
    trace (field);
    trace (data[field]);
    
}
2 Likes
#10

Awesome! This should really be part of Haxe :stuck_out_tongue: (Yeah, I know there’s a really long debate about this issue)

Edit: By the way, is there an impact on performance wen using it?

#11

It’s not as fast as working with static data types (obviously), but it’s the same performance as running Reflect.fields and Reflect.field over the object :success: