How to use Opencv Javascript For Face detection using pre-built opencv.js?

I am demonstrating the most simple method to implement face detection using opencv.js.

To know how to get pre-built opencv.js file : https://www.youtube.com/watch?v=uO7k5aBJwk4&t=21s

You can get this project from my GitHub page : https://github.com/rajeshpachaikani/face-recognition-opencv-js ... https://www.youtube.com/watch?v=-E8pdgsZ-ds