Convert blob to base64

Question

This is a snippet for the code that I want to do Blob to Base64 string:

This commented part works and that when the URL generated by this i

Answer 1

var audioURL = window.URL.createObjectURL(blob);
audio.src = audioURL;

var reader = new window.FileReader();
reader.readAsDataURL(blob);
reader.onloadend = function () {
     base64data = reader.result;
     console.log(base64data);
}