From a07268feda501fabad9ad560f4091d143fcff595 Mon Sep 17 00:00:00 2001
From: hyin08 <jeff.yin2016@gmail.com>
Date: Sun, 28 Aug 2022 22:25:10 +0800
Subject: [PATCH] my promise

---
 index.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/index.js b/index.js
index 59d6c84..28e58fd 100644
--- a/index.js
+++ b/index.js
@@ -10,12 +10,20 @@ function myPromise(constructor) {
   function resolve(value) {
 
     // TODO resolve如何改变状态及返回结果
+    if(self.status === "pending") {
+      self.value = value;
+      self.status = "resolved";
+    }
 
   }
 
   function reject(reason) {
 
     // TODO reject如何改变状态及返回结果
+    if(self.status === "pending") {
+      self.reason = reason;
+      self.status = "rejected";
+    }
 
   }
 
@@ -36,6 +44,16 @@ function myPromise(constructor) {
 myPromise.prototype.then = function (onFullfilled, onRejected) {
 
   //TODO then如何实现
+  let self = this;
+  switch(self.status) {
+    case "resolved":
+      onFullfilled(self.value);
+      break;
+    case "rejected":
+      onRejected(self.reason);
+      break;
+    default:
+  }
 
 }
 module.exports = myPromise