commit by magit in emacs@2022-09-12 12:35:06

2022-09-12 12:35:07 +08:00 · 2022-09-12 12:35:07 +08:00 · 04ee6c9d6b
parent 4948ae1ad3
commit 04ee6c9d6b
1 changed files with 4 additions and 0 deletions
--- a/js/freq.ts
+++ b/js/freq.ts
@ -1,3 +1,7 @@

 // 判断是否为字符串
 typeof '' === 'string';
+
+// 判断字符串是否包含子串，区分大小写
+'Blue Whale'.includes('blue'); // returns false
+'blue ss'.indexOf('blue');