diff --git a/docs/array.md b/docs/array.md
index ddcc7cf..7b2f7be 100644
--- a/docs/array.md
+++ b/docs/array.md
@@ -414,7 +414,7 @@ ES5对空位的处理，已经很不一致了，大多数情况下会忽略空
 
 ```javascript
 // forEach方法
-[,'a'].forEach((x,i) => log(i)); // 1
+[,'a'].forEach((x,i) => console.log(i)); // 1
 
 // filter方法
 ['a',,'b'].filter(x => true) // ['a','b']
diff --git a/docs/object.md b/docs/object.md
index 292adcd..3c548e8 100644
--- a/docs/object.md
+++ b/docs/object.md
@@ -873,7 +873,11 @@ function* entries(obj) {
 
 // 非Generator函数的版本
 function entries(obj) {
-  return (for (key of Object.keys(obj)) [key, obj[key]]);
+  let arr = [];
+  for (key of Object.keys(obj)) {
+    arr.push([key, obj[key]]);
+  }
+  return arr;
 }
 ```