From 05cc13a0a874676ad35f674358569d05c15fc023 Mon Sep 17 00:00:00 2001
From: hehh <lingtinzhe@icloud.com>
Date: Tue, 25 Nov 2025 10:59:59 +0800
Subject: [PATCH] =?UTF-8?q?refactor(js):=20=E4=BC=98=E5=8C=96=E4=B8=BB?=
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- 将重复的$('#theme-btn')选择器调用提取为常量themeBtn
- 提高代码可读性和维护性
- 避免重复查询DOM元素提升性能
---
 js/about.js | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/js/about.js b/js/about.js
index 64640e3..a0c7025 100644
--- a/js/about.js
+++ b/js/about.js
@@ -184,21 +184,22 @@ class ThemeManager {
     init() {
         let theme = getStoredTheme();
         if (theme) this.root.setAttribute('data-theme', theme);
-        $('#theme-btn').toggleClass('is-active', theme === 'night');
+        const themeBtn = $('#theme-btn');
+        themeBtn.toggleClass('is-active', theme === 'night');
         const langForTitle = getStoredLanguage();
         const titleText = theme === 'night' ? (langForTitle === 'zh' ? '白天模式' : 'Day') : (langForTitle === 'zh' ? '黑夜模式' : 'Night');
-        $('#theme-btn').attr('title', titleText);
+        themeBtn.attr('title', titleText);
 
-        $('#theme-btn').on('click', () => {
+        themeBtn.on('click', () => {
             const curr = this.root.getAttribute('data-theme');
             const next = curr === 'night' ? 'day' : 'night';
             if (next) this.root.setAttribute('data-theme', next);
             else this.root.removeAttribute('data-theme');
             setStoredTheme(next)
-            $('#theme-btn').toggleClass('is-active', next === 'night');
+            themeBtn.toggleClass('is-active', next === 'night');
             const lang = getStoredLanguage();
             const t = next === 'night' ? (lang === 'zh' ? '白天模式' : 'Day') : (lang === 'zh' ? '黑夜模式' : 'Night');
-            $('#theme-btn').attr('title', t);
+            themeBtn.attr('title', t);
 
             // 更新Artalk主题
             if (typeof Artalk !== 'undefined') {