tell whether selected image is jpg or png

[cory-baker]

Hi, I understand the source prop allows us to specify what type of base64 string to output (jpeg or png).

But is there a way to tell the source of the image?

Use case: firebase needs to know if the image is a png or jpg... i have no way of telling what kind of of file was selected. I hope this makes sense.

[Blutude]

imgstr is the base64 encoded string.
if imgstr[0] == '/': ext = 'jpg' elif imgstr[0] == 'i': ext = 'png'