How can I check if the browser support HTML5 file upload (FormData object)?

Question

How can I check if the browser support HTML5 file upload (FormData object)?

var fd = new FormData();

Following the answer from this post, b

Answer 1

This is the one-liner I use to check if the browser supports FormData and upload progress, in jQuery:

 var xhr2 = !! ( window.FormData && ("upload" in ($.ajaxSettings.xhr()) );