回答編集履歴

1

訂正

2018/12/18 06:26

投稿

Lhankor_Mhy
Lhankor_Mhy

スコア35860

test CHANGED
@@ -12,10 +12,10 @@
12
12
 
13
13
  var x = document.getElementsByClassName('test');
14
14
 
15
- console.log(x); //1
15
+ console.log(x.length); //1
16
16
 
17
17
  x[0].classList.remove('test');
18
18
 
19
- console.log(x); //0
19
+ console.log(x.length); //0
20
20
 
21
21
  ```