<!DOCTYPE html><html lang="zh" data-theme="dark"><head><meta charset="utf-8"><meta name="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><title>Cytrogen 的个人博客</title><meta name="description" content="Cytrogen 的个人博客，Cytrogen's Blog"><link rel="icon" href="../../favicon.png"><link rel="canonical"><link rel="webmention" href="https://webmention.io/cytrogen.icu/webmention"><link rel="me" href="https://m.otter.homes/@Cytrogen"><link rel="me" href="https://github.com/cytrogen"><meta name="fediverse:creator" content="@Cytrogen@m.otter.homes"><link rel="preload" href="../../fonts/opensans-regular-latin.woff2" as="font" type="font/woff2" crossorigin="anonymous"><style>@font-face {
font-family: 'Open Sans';
src: url('../../fonts/opensans-regular-latin.woff2') format('woff2');
font-weight: 400;
font-style: normal;
font-display: swap;
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
size-adjust: 107%;
ascent-override: 97%;
descent-override: 25%;
line-gap-override: 0%;
}
</style><script>(function() {
try {
// 优先级：用户选择 > 系统偏好 > 默认浅色
const saved = localStorage.getItem('theme');
const theme = saved ||
(window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light');
document.documentElement.setAttribute('data-theme', theme);
document.documentElement.style.colorScheme = theme;
} catch (error) {
// 失败时使用默认主题，不阻塞渲染
document.documentElement.setAttribute('data-theme', 'light');
}
})();
</script><link rel="stylesheet" href="../../css/ares.css"><script data-netlify-skip-bundle="true">(function() {
document.addEventListener('DOMContentLoaded', function() {
const theme = document.documentElement.getAttribute('data-theme');
const pageWrapper = document.getElementById('page-wrapper');
if (pageWrapper && theme) {
pageWrapper.setAttribute('data-theme', theme);
}
});
})();
</script><!-- hexo injector head_end start -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.12.0/dist/katex.min.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/hexo-math@4.0.0/dist/style.css">
<!-- hexo injector head_end end --><meta name="generator" content="Hexo 8.1.1"><link rel="alternate" href="atom.xml" title="Cytrogen 的个人博客" type="application/atom+xml">
</head><body><div id="page-wrapper"><a class="skip-link" href="#main-content">跳到主要内容</a><div class="wrap"><header><a class="logo-link" href="../../index.html"><img src="../../favicon.png" alt="logo"></a><div class="h-card visually-hidden"><img class="u-photo" src="https://cytrogen.icu/favicon.png" alt="Cytrogen"><a class="p-name u-url u-uid" href="https://cytrogen.icu">Cytrogen</a><p class="p-note">Cytrogen 的个人博客，Cytrogen's Blog</p><a class="u-url" rel="me noopener" target="_blank" href="https://m.otter.homes/@Cytrogen">Mastodon</a><a class="u-url" rel="me noopener" target="_blank" href="https://github.com/cytrogen">GitHub</a></div><nav class="site-nav"><div class="nav-main"><div class="nav-primary"><ul class="nav-list hidden-mobile"><li class="nav-item"><a class="nav-link" href="../../index.html">首页</a></li></ul><div class="nav-tools"><div class="language-menu"><button class="language-toggle" type="button"><svg class="icon icon-globe" width="16" height="16" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false"><path d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8zm7.5-6.923c-.67.204-1.335.82-1.887 1.855A7.97 7.97 0 0 0 5.145 4H7.5V1.077zM4.09 4a9.267 9.267 0 0 1 .64-1.539 6.7 6.7 0 0 1 .597-.933A7.025 7.025 0 0 0 2.255 4H4.09zm-.582 3.5c.03-.877.138-1.718.312-2.5H1.674a6.958 6.958 0 0 0-.656 2.5h2.49zM4.847 5a12.5 12.5 0 0 0-.338 2.5H7.5V5H4.847zM8.5 5v2.5h2.99a12.495 12.495 0 0 0-.337-2.5H8.5zM4.51 8.5a12.5 12.5 0 0 0 .337 2.5H7.5V8.5H4.51zm3.99 0V11h2.653c.187-.765.306-1.608.338-2.5H8.5zM5.145 12c.138.386.295.744.468 1.068.552 1.035 1.218 1.65 1.887 1.855V12H5.145zm.182 2.472a6.696 6.696 0 0 1-.597-.933A9.268 9.268 0 0 1 4.09 12H2.255a7.024 7.024 0 0 0 3.072 2.472zM3.82 11a13.652 13.652 0 0 1-.312-2.5h-2.49c.062.89.291 1.733.656 2.5H3.82zm6.853 3.472A7.024 7.024 0 0 0 13.745 12H11.91a9.27 9.27 0 0 1-.64 1.539 6.688 6.688 0 0 1-.597.933zM8.5 12v2.923c.67-.204 1.335-.82 1.887-1.855A7.97 7.97 0 0 0 10.855 12H8.5zm3.68-1h2.146c.365-.767.594-1.61.656-2.5h-2.49a13.65 13.65 0 0 1-.312 2.5zm2.802-3.5a6.959 6.959 0 0 0-.656-2.5H12.18c.174.782.282 1.623.312 2.5h2.49zM11.27 2.461c.247.464.462.98.64 1.539h1.835a7.024 7.024 0 0 0-3.072-2.472c.218.284.418.598.597.933zM10.855 4a7.966 7.966 0 0 0-.468-1.068C9.835 1.897 9.17 1.282 8.5 1.077V4h2.355z"></path></svg><span>中文</span></button><div class="language-dropdown"><a class="language-option" href="../../en/page/7/index.html">English</a></div></div></div><div class="nav-controls"><div class="more-menu hidden-mobile"><button class="more-toggle" type="button"><span>更多</span><svg class="icon icon-chevron-down" width="12" height="12" viewBox="0 0 12 12" fill="currentColor" aria-hidden="true" focusable="false"><path d="M6 8.825c-.2 0-.4-.1-.5-.2l-3.3-3.3c-.3-.3-.3-.8 0-1.1s.8-.3 1.1 0l2.7 2.7 2.7-2.7c.3-.3.8-.3 1.1 0s.3.8 0 1.1l-3.3 3.3c-.1.1-.3.2-.5.2z"></path></svg></button><div class="more-dropdown"><ul class="dropdown-list"><li class="dropdown-item"><a class="nav-link" href="../../archives/index.html">归档</a></li><li class="dropdown-item"><a class="nav-link" href="../../categories/index.html">分类</a></li><li class="dropdown-item"><a class="nav-link" href="../../tags/index.html">标签</a></li><li class="dropdown-item"><a class="nav-link" href="../../about/index.html">关于</a></li><li class="dropdown-item"><a class="nav-link" href="../../sitemap/index.html">领地地图</a></li></ul></div></div><div class="theme-switcher"><button class="theme-toggle" type="button" role="switch" aria-pressed="false" aria-label="切换主题"><div class="theme-icon moon-icon"><svg class="icon icon-moon" width="16" height="16" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false"><path d="M6 .278a.768.768 0 0 1 .08.858 7.208 7.208 0 0 0-.878 3.46c0 4.021 3.278 7.277 7.318 7.277.527 0 1.04-.055 1.533-.16a.787.787 0 0 1 .81.316.733.733 0 0 1-.031.893A8.349 8.349 0 0 1 8.344 16C3.734 16 0 12.286 0 7.71 0 4.266 2.114 1.312 5.124.06A.752.752 0 0 1 6 .278z"></path></svg></div><div class="theme-icon sun-icon"><svg class="icon icon-sun" width="16" height="16" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false"><path d="M8 11a3 3 0 1 1 0-6 3 3 0 0 1 0 6zm0 1a4 4 0 1 0 0-8 4 4 0 0 0 0 8zM8 0a.5.5 0 0 1 .5.5v2a.5.5 0 0 1-1 0v-2A.5.5 0 0 1 8 0zm0 13a.5.5 0 0 1 .5.5v2a.5.5 0 0 1-1 0v-2A.5.5 0 0 1 8 13zm8-5a.5.5 0 0 1-.5.5h-2a.5.5 0 0 1 0-1h2a.5.5 0 0 1 .5.5zM3 8a.5.5 0 0 1-.5.5h-2a.5.5 0 0 1 0-1h2A.5.5 0 0 1 3 8zm10.657-5.657a.5.5 0 0 1 0 .707l-1.414 1.415a.5.5 0 1 1-.707-.708l1.414-1.414a.5.5 0 0 1 .707 0zm-9.193 9.193a.5.5 0 0 1 0 .707L3.05 13.657a.5.5 0 0 1-.707-.707l1.414-1.414a.5.5 0 0 1 .707 0zm9.193 2.121a.5.5 0 0 1-.707 0l-1.414-1.414a.5.5 0 0 1 .707-.707l1.414 1.414a.5.5 0 0 1 0 .707zM4.464 4.465a.5.5 0 0 1-.707 0L2.343 3.05a.5.5 0 1 1 .707-.707l1.414 1.414a.5.5 0 0 1 0 .708z"></path></svg></div></button></div><details class="mobile-menu-details hidden-desktop"><summary class="hamburger-menu" aria-label="nav.menu"><svg class="icon icon-bars" width="16" height="16" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false"><path d="M2.5 12a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5z"></path></svg><span class="menu-text">nav.menu</span></summary><div class="mobile-menu-dropdown"><ul class="mobile-nav-list"><li class="mobile-nav-item"><a class="mobile-nav-link" href="../../index.html">首页</a></li><li class="mobile-nav-item"><a class="mobile-nav-link" href="../../archives/index.html">归档</a></li><li class="mobile-nav-item"><a class="mobile-nav-link" href="../../categories/index.html">分类</a></li><li class="mobile-nav-item"><a class="mobile-nav-link" href="../../tags/index.html">标签</a></li><li class="mobile-nav-item"><a class="mobile-nav-link" href="../../about/index.html">关于</a></li><li class="mobile-nav-item"><a class="mobile-nav-link" href="../../sitemap/index.html">领地地图</a></li></ul></div></details></div></div></div></nav></header><main class="container" id="main-content" tabindex="-1"><div class="h-feed"><span class="p-name visually-hidden">Cytrogen 的个人博客</span><ul class="home post-list"><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/b5ac.html">React + NestJS + Socket.io 项目实践【3】：消息发送</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-05-14T07:41:50.000Z">5/14/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.993Z"></time></div><div class="post-content p-summary"><p>近期在期末考，所以更新会比较慢，这篇文章主要讲解如何实现消息发送功能。</p></div><a class="read-more" href="../../posts/b5ac.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/40b4.html">React + NestJS + Socket.io 项目实践【2】：JWT 验证</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-04-28T04:25:50.000Z">4/28/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.993Z"></time></div><div class="post-content p-summary"><p>上篇文章我们迁移了整个项目到 NestJS，这篇文章我们将实现 JWT 验证。</p></div><a class="read-more" href="../../posts/40b4.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/a039.html">Pug 学习笔记</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-04-03T03:05:28.000Z">4/2/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.757Z"></time></div><div class="post-content p-summary"><p>我的博客网站基于 Hexo，使用了 Pug 模板引擎。有时候感觉现在正在使用的主题不够满足自己的需求，就得手动修改 Pug 文件。</p></div><a class="read-more" href="../../posts/a039.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/3b97.html">React + NestJS + Socket.io 项目实践【1】：从 Express 迁移</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-03-30T04:06:13.000Z">3/30/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:55.001Z"></time></div><div class="post-content p-summary"><p>二月份的时候我写了一篇<a href="/posts/bb3e">React + Express + Socket.io 之间的实时通信【2】：注册登录</a>，那时候我还在用 Express 作为后端框架。</p>
<p>因为中途想到使用 TypeScript，所以我决定迁移到 NestJS。</p></div><a class="read-more" href="../../posts/3b97.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/2537.html">MTH 2207 笔记</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-03-14T03:55:28.000Z">3/13/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.733Z"></time></div><div class="post-content p-summary"><p>微积分笔记，仅作为个人学习记录，不保证正确性。</p></div><a class="read-more" href="../../posts/2537.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/eb2a.html">IBM 全栈开发【6】：容器 & Kubernetes 和 OpenShift 简介</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-03-12T02:48:00.000Z">3/11/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.717Z"></time></div><div class="post-content p-summary"><p>近期在学习 IBM 全栈应用开发微学士课程，故此记录学习笔记。</p></div><a class="read-more" href="../../posts/eb2a.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/3875.html">PHY 2002 笔记</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-03-06T04:05:28.000Z">3/5/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.757Z"></time></div><div class="post-content p-summary"><p>物理学笔记，仅作为个人学习记录，不保证正确性。</p></div><a class="read-more" href="../../posts/3875.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/de2c.html">Docker 实践：构建 React 和 Express 项目</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-03-01T06:11:13.000Z">3/1/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:54.693Z"></time></div><div class="post-content p-summary"><p>近期考虑了去学习如何部署自己的网站项目。根据网上的资料，决定先使用 Docker + Nginx 的组合来部署到本地上，之后再考虑部署到云端。</p></div><a class="read-more" href="../../posts/de2c.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/c0fc.html">React 的 Markdown 渲染</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-02-21T04:11:13.000Z">2/20/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:55.001Z"></time></div><div class="post-content p-summary"><p>项目需求中有一个功能是支持 Markdown 渲染，尽量仿照 ChatGPT、Claude 的效果。</p>
<p>该文章的目的是记录我在实现这个功能时遇到的问题和解决方案。</p></div><a class="read-more" href="../../posts/c0fc.html">...阅读全文</a></article></li><li class="post-list-item"><article class="post-block h-entry"><h2 class="post-title"><a class="post-title-link u-url p-name" href="../../posts/14d5.html">React 的 Textarea 高度自适应</a></h2><div class="post-info"><time class="post-date dt-published" datetime="2024-02-20T04:11:13.000Z">2/19/2024</time><time class="dt-updated visually-hidden" datetime="2026-02-09T17:16:55.001Z"></time></div><div class="post-content p-summary"><p>上次提到过我接触了一个新项目，是校友们策划的一个类 ChatGPT 的项目，我负责前端部分，用的是 React + TailwindCSS 的组合。 我这个刚接触 React 一个月的小白肯定是搓手等着上手、跃跃欲试。</p>
<p>像是 ChatGPT、Claude，甚至是 Discord 这样的聊天室 App，输入框都是能够让用户换行、输入代码块的。我们的项目也不例外。 但是，<code>textarea</code> 组件就算是默认单行，换行时也会向下增加高度，导致脱离原本的父容器，甚至跑到屏幕外面去。</p></div><a class="read-more" href="../../posts/14d5.html">...阅读全文</a></article></li></ul></div></main><footer><div class="paginator"><a class="prev" href="../6/">上一页</a><a class="next" href="../8/">下一页</a></div><div class="copyright"><p class="footer-links"><a href="../../friends/index.html">友链</a><span class="footer-separator"> ·</span><a href="../../links/index.html">邻邦</a><span class="footer-separator"> ·</span><a href="../../contact/index.html">联络</a><span class="footer-separator"> ·</span><a href="../../colophon/index.html">营造记</a><span class="footer-separator"> ·</span><a href="../../atom.xml">RSS订阅</a></p><p>© 2025 - 2026 <a href="https://cytrogen.icu">Cytrogen</a>, powered by <a href="https://hexo.io/" target="_blank">Hexo</a> and <a href="https://github.com/cytrogen/hexo-theme-ares" target="_blank">hexo-theme-ares</a>.</p><p><a href="https://blogscn.fun" target="_blank" rel="noopener">BLOGS·CN</a></p></div></footer></div></div><a class="back-to-top" href="#top" aria-label="返回顶部"><svg width="20" height="20" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true"><path d="M3.293 9.707a1 1 0 010-1.414L9.586 2a2 2 0 012.828 0l6.293 6.293a1 1 0 01-1.414 1.414L11 3.414V17a1 1 0 11-2 0V3.414L2.707 9.707a1 1 0 01-1.414 0z"></path></svg></a><script>document.addEventListener('DOMContentLoaded', function() {
const codeBlocks = document.querySelectorAll('figure.highlight');
codeBlocks.forEach(block => {
let caption = block.querySelector('figcaption');
if (!caption) {
caption = document.createElement('figcaption');
block.insertBefore(caption, block.firstChild);
}
const info = document.createElement('div');
info.className = 'info';
const filename = caption.querySelector('span');
if (filename) {
filename.className = 'filename';
info.appendChild(filename);
}
const lang = block.className.split(' ')[1];
if (lang) {
const langSpan = document.createElement('span');
langSpan.className = 'lang-name';
langSpan.textContent = lang;
info.appendChild(langSpan);
}
const sourceLink = caption.querySelector('a');
if (sourceLink) {
sourceLink.className = 'source-link';
info.appendChild(sourceLink);
}
const actions = document.createElement('div');
actions.className = 'actions';
const codeHeight = block.scrollHeight;
const threshold = 300;
if (codeHeight > threshold) {
block.classList.add('folded');
const toggleBtn = document.createElement('button');
toggleBtn.textContent = '展开';
toggleBtn.addEventListener('click', () => {
block.classList.toggle('folded');
toggleBtn.textContent = block.classList.contains('folded') ? '展开' : '折叠';
});
actions.appendChild(toggleBtn);
}
const copyBtn = document.createElement('button');
copyBtn.textContent = '复制';
copyBtn.addEventListener('click', async () => {
const codeLines = block.querySelectorAll('.code .line');
const code = Array.from(codeLines)
.map(line => line.textContent)
.join('\n')
.replace(/\n\n/g, '\n');
try {
await navigator.clipboard.writeText(code);
copyBtn.textContent = '已复制';
copyBtn.classList.add('copied');
setTimeout(() => {
copyBtn.textContent = '复制';
copyBtn.classList.remove('copied');
}, 3000);
} catch (err) {
console.error('复制失败:', err);
copyBtn.textContent = '复制失败';
setTimeout(() => {
copyBtn.textContent = '复制';
}, 3000);
}
});
actions.appendChild(copyBtn);
caption.innerHTML = '';
caption.appendChild(info);
caption.appendChild(actions);
const markedLines = block.getAttribute('data-marked-lines');
if (markedLines) {
const lines = markedLines.split(',');
lines.forEach(range => {
if (range.includes('-')) {
const [start, end] = range.split('-').map(Number);
for (let i = start; i <= end; i++) {
const line = block.querySelector(`.line-${i}`);
if (line) line.classList.add('marked');
}
} else {
const line = block.querySelector(`.line-${range}`);
if (line) line.classList.add('marked');
}
});
}
});
});</script><script async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js" id="MathJax-script"></script><script>(function() {
document.addEventListener('DOMContentLoaded', function() {
const themeToggle = document.querySelector('.theme-toggle');
if (!themeToggle) return;
const getCurrentTheme = () => {
return document.documentElement.getAttribute('data-theme') || 'light';
};
const updateUI = (theme) => {
const isDark = theme === 'dark';
themeToggle.setAttribute('aria-pressed', isDark.toString());
};
const setTheme = (theme) => {
document.documentElement.setAttribute('data-theme', theme);
document.documentElement.style.colorScheme = theme;
const pageWrapper = document.getElementById('page-wrapper');
if (pageWrapper) {
pageWrapper.setAttribute('data-theme', theme);
}
// Find and remove the temporary anti-flicker style tag if it exists.
// This ensures the main stylesheet takes full control after the initial load.
const antiFlickerStyle = document.getElementById('anti-flicker-style');
if (antiFlickerStyle) {
antiFlickerStyle.remove();
}
localStorage.setItem('theme', theme);
updateUI(theme);
};
const toggleTheme = () => {
const current = getCurrentTheme();
const newTheme = current === 'light' ? 'dark' : 'light';
setTheme(newTheme);
};
updateUI(getCurrentTheme());
themeToggle.addEventListener('click', toggleTheme);
if (window.matchMedia) {
const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
mediaQuery.addEventListener('change', function(e) {
if (!localStorage.getItem('theme')) {
const theme = e.matches ? 'dark' : 'light';
setTheme(theme);
}
});
}
});
})();
</script><script src="../../js/details-toggle.js" defer></script><script>(function() {
document.addEventListener('DOMContentLoaded', function() {
const backToTopBtn = document.querySelector('.back-to-top');
if (!backToTopBtn) return;
const toggleButtonVisibility = () => {
const scrollTop = window.pageYOffset || document.documentElement.scrollTop;
const shouldShow = scrollTop > 200;
if (shouldShow) {
backToTopBtn.classList.add('is-visible');
} else {
backToTopBtn.classList.remove('is-visible');
}
};
let ticking = false;
const handleScroll = () => {
if (!ticking) {
requestAnimationFrame(() => {
toggleButtonVisibility();
ticking = false;
});
ticking = true;
}
};
const scrollToTop = (event) => {
event.preventDefault();
window.scrollTo({
top: 0,
behavior: 'smooth'
});
};
window.addEventListener('scroll', handleScroll);
backToTopBtn.addEventListener('click', scrollToTop);
toggleButtonVisibility();
});
})();</script></body></html>