Merge pull request ruanyf#568 from baooab/patch-2

Fix：统一例子中的代码风格
weeisc · Dec 27, 2017 · 7b728a4 · 7b728a4
2 parents e534d8b + 311cfaa
commit 7b728a4
Showing 1 changed file with 9 additions and 9 deletions.
diff --git a/docs/iterator.md b/docs/iterator.md
@@ -444,13 +444,13 @@ str // "hi"
 `Symbol.iterator`方法的最简单实现，还是使用下一章要介绍的 Generator 函数。
 
 ```javascript
-var myIterable = {};
-
-myIterable[Symbol.iterator] = function* () {
-  yield 1;
-  yield 2;
-  yield 3;
-};
+let myIterable = {
+  [Symbol.iterator]: function* () {
+    yield 1;
+    yield 2;
+    yield 3;
+  }
+}
 [...myIterable] // [1, 2, 3]
 
 // 或者采用下面的简洁写法
@@ -465,8 +465,8 @@ let obj = {
 for (let x of obj) {
   console.log(x);
 }
-// hello
-// world
+// "hello"
+// "world"
 ```
 
 上面代码中，`Symbol.iterator`方法几乎不用部署任何代码，只要用 yield 命令给出每一步的返回值即可。