回答編集履歴

ちょうせい

2019/05/31 11:37

投稿

スコア117921

answer CHANGED Viewed

@@ -25,9 +25,7 @@
     return async ()=>data;
   });
   console.log("start");
-  await p().then(data=>{
+  await p().then(console.log);
-    console.log(data);
-  });
   console.log("end");
 })();

ちょうせい

2019/05/31 11:36

投稿

スコア117921

answer CHANGED Viewed

@@ -9,6 +9,19 @@
   var p=await new Promise(resolve=>{
     setTimeout(()=>{resolve("test")},1000);
   }).then(data=>{
+    return data;
+  });
+  console.log("start");
+  console.log(p);
+  console.log("end");
+})();
+```
+もしくは
+```javascript
+(async()=>{
+  var p=await new Promise(resolve=>{
+    setTimeout(()=>{resolve("test")},1000);
+  }).then(data=>{
     return async ()=>data;
   });
   console.log("start");

参考

2019/05/31 11:23

投稿

スコア117921

answer CHANGED Viewed

@@ -1,4 +1,22 @@
 ```javascript
 console.log(JSON.stringify(val));
 ```
-で状況が確認できるかもしれません
+で状況が確認できるかもしれません
+# 非同期データの取り出し方
+```javascript
+(async()=>{
+  var p=await new Promise(resolve=>{
+    setTimeout(()=>{resolve("test")},1000);
+  }).then(data=>{
+    return async ()=>data;
+  });
+  console.log("start");
+  await p().then(data=>{
+    console.log(data);
+  });
+  console.log("end");
+})();
+```