Hi ,

 How to get the length of a attribute of type " Map" from lightning controller.

Component:

<aura:attribute name="IndexMap" type="Map" default="{ 'Draft':1, 'Pending':2, 'NeedInfo':3, 'Resolved':4, 'Closed':5}"/>

Controller:

var myMap= component.get("v.IndexMap");
        alert(myMap.length);

The above code result to "undefined". Actually I have to get "5" as myMap has 5 elements.  Can you please help in getting this.

Thanks in advance.

Regards,
Naveen.