1 files changed, 6 insertions, 11 deletions

diff --git a/lib/seq.js b/lib/seq.js
index 5672195..6dc28d8 100644
--- a/lib/seq.js
+++ b/lib/seq.js
@@ -1,5 +1,4 @@
 import noop from './internal/noop';
-import slice from './internal/slice';
 import reduce from './reduce';
 import wrapAsync from './internal/wrapAsync';
 
@@ -41,10 +40,9 @@ import wrapAsync from './internal/wrapAsync';
  *     });
  * });
  */
-export default function seq(/*...functions*/) {
-    var _functions = Array.prototype.map.call(arguments, wrapAsync);
-    return function(/*...args*/) {
-        var args = slice(arguments);
+export default function seq(...functions) {
+    var _functions = functions.map(wrapAsync);
+    return function (...args) {
         var that = this;
 
         var cb = args[args.length - 1];
@@ -54,14 +52,11 @@ export default function seq(/*...functions*/) {
             cb = noop;
         }
 
-        reduce(_functions, args, function(newargs, fn, cb) {
-            fn.apply(that, newargs.concat(function(err/*, ...nextargs*/) {
-                var nextargs = slice(arguments, 1);
+        reduce(_functions, args, (newargs, fn, cb) => {
+            fn.apply(that, newargs.concat((err, ...nextargs) => {
                 cb(err, nextargs);
             }));
         },
-        function(err, results) {
-            cb.apply(that, [err].concat(results));
-        });
+        (err, results) => cb(err, ...results));
     };
 }