From 42f36df2c138f7d82431395f14f0a08cf41be8cd Mon Sep 17 00:00:00 2001
From: xiebin <123456>
Date: Wed, 23 Nov 2022 09:01:21 +0800
Subject: [PATCH] 代码优化

---
 src/util/determiningFileFormat.js |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/util/determiningFileFormat.js b/src/util/determiningFileFormat.js
index be72c3c..87542b5 100644
--- a/src/util/determiningFileFormat.js
+++ b/src/util/determiningFileFormat.js
@@ -1,3 +1,8 @@
+/**
+ * 根据字符串后缀判断是否是图片（仅判断png、jpg、jpeg、webp格式）
+ * @param str
+ * @returns {boolean}
+ */
 export const isImage = (str) =>{
   var reg = /.(png|jpg|gif|jpeg|webp)$/;
   return reg.test(str);

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