How to get value of Qlik Variable using JavaScript

[kenphamvn]

Dear All

I'm newbie in Qlik API

I'm using Qlik API to embed chart into my website, it's working fine with chart object (Bar, line, pie...)

But i can't get value from variables (i defined in Qlik sense), KPI object, i want to get values only

Please help me, how can do it

Regards

An Pham