From 832711d4157ab75eebf7a26eaaac7913f8bf8d9a Mon Sep 17 00:00:00 2001
From: bekzod <bekzod@me.com>
Date: Sat, 20 May 2017 21:18:31 +0500
Subject: [PATCH] made checks explicit

---
 lib/es6-promise/then.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/es6-promise/then.js b/lib/es6-promise/then.js
index b2b79f0..cc74326 100644
--- a/lib/es6-promise/then.js
+++ b/lib/es6-promise/then.js
@@ -21,11 +21,11 @@ export default function then(onFulfillment, onRejection) {
 
   const { _state } = parent;
 
-  if (_state) {
-    const callback = arguments[_state - 1];
-    asap(() => invokeCallback(_state, child, callback, parent._result));
-  } else {
+  if (_state === PENDING) {
     subscribe(parent, child, onFulfillment, onRejection);
+  } else {
+    const callback = _state === FULFILLED ? onFulfillment : onRejection;
+    asap(() => invokeCallback(_state, child, callback, parent._result));
   }
 
   return child;