How to check whether one class is inhereted of another class?

Question

I'm using Ext4...

How to check whether one class is inherited of another class?

for example:

Ext.define("A", {});
Ext.define("B", { extend: "A" });
Ext.define("C", { extend: "B" });

var a = Ext.create("A");
var c = Ext.create("C");

I need something like this: c instanceof a

???

Thanks

Just curious, but did you try with `c instanceof a`? That would work in Javascript. — troelskn, Aug 17 '11 at 17:44

score 6 · Accepted Answer · answered Aug 23 '11 at 12:20

6

(Based on @troelskn 's comment)

c instanceof A

returns true.

answered Aug 23 '11 at 12:20

Miriam

score 2 · Answer 2 · answered Aug 17 '11 at 17:33

2

You can use isXtype method. See docs here: Ext.AbstractComponent

answered Aug 17 '11 at 17:33

dbrin

it is not exactly what I meant, but thanks, I didn't know this method! :) – Eugene Petrov Aug 18 '11 at 03:04

2 Answers2