Javascript - get extension from base64 image

Question

I have a base64 encoded image returned from a service and it looks like this:

/9j/4AAQSkZJRgABAQEASABIAAD/4Yp2aHR0cDovL25zLmFkb2JlLmNvbS94YXAvMS4wLwA8P3hwYWN         


        

Answer 1

You could also do it with a function chain.

const type = base64Data.split(';')[0].split('/')[1];