How to use component.get() in Aura Controller for Boolean value in Component

Question

I have a boolean attribute in component

Component

<aura:attribute name="isOpptyExists" type="Boolean" default="false"/>

Controller

var isOpptyExists = component.get("c.isOpptyExists");

alert(isOpptyExists) -- But I am not getting anything.

Answer 1

Its because you have to use the 'v' and not the 'c' object here.

var isOpptyExists = component.get("v.isOpptyExists");