As requested, I was trying to make the code as readable as possible

lib/youtube-dl.js

@@ -52,17 +52,17 @@ var ytdl = module.exports = function(videoUrl, args, options) {
       'Host': url.parse(item.url).hostname
     };
 
-    if (typeof options.start !== 'undefined' && options.start > 0) {
+    if ((options || {}).start > 0) {
       headers.Range = "bytes=" + options.start + "-";
-    };
+    }
 
     var req = request({
       url: item.url,
       headers: headers
     });
 
     req.on('response', function(res) {
-      if (options.start > 0 && res.statusCode == 416) {
+      if ((options || {}).start > 0 && res.statusCode == 416) {
         // the file that is being resumed is complete.
         stream.emit('end');
         return;