How do I get LastModified time on Drug and Drop files?

I’m beginner of Uppy and tus. May I ask how can I get the LastModified date and time of local files using “Drug and Drop” plugin on Uppy, please?

I want to keep compatibility with tus-js-client and I get it by next code of JavaScript.

var inp_f_sound           = document.getElementById("f_sound");  
var FileObj = inp_f_sound.files;    
for( var i = 0; i < FileObj.length; i++ ){ 
  TS = FileObj[i].lastModified;

I’m very happy to hear your comments.