如何使用 JavaScript 实现页面标题的滚动显示效果同时限制显示字符数？
时间：2023-10-19 11:13:28
225浏览
收藏
golang学习网今天将给大家带来《如何使用 JavaScript 实现页面标题的滚动显示效果同时限制显示字符数？》，感兴趣的朋友请继续看下去吧！以下内容将会涉及到等等知识点，如果你是正在学习文章或者已经是大佬级别了，都非常欢迎也希望大家都能给我建议评论哈~希望能帮助到大家！
如何使用 JavaScript 实现页面标题的滚动显示效果同时限制显示字符数？
在网页开发中，我们常常需要通过动态效果来吸引用户的注意力。其中，页面标题的滚动显示效果是一种常见且简洁的方式。本文将介绍如何使用 JavaScript 实现页面标题的滚动显示效果，并同时限制显示的字符数。
首先，我们需要明确的是，页面标题是由浏览器中的 </code> 标签定义的。因此，我们需要通过 JavaScript 来获取并修改这个标签的内容。以下是实现滚动显示效果的代码示例：</p><pre class="brush:html;toolbar:false;"><!DOCTYPE html>
<html>
<head>
<script>
// 获取页面标题
var title = document.title;
// 每次显示的字符数
var charCount = 0;
// 定时器变量
var titleScroll;
// 定义滚动显示标题的函数
function scrollTitle() {
// 截取标题的前面部分
var prefix = title.substring(0, charCount++);
// 修改页面标题
document.title = prefix;
// 如果还没有显示完整标题，继续滚动
if (charCount <= title.length) {
titleScroll = setTimeout(scrollTitle, 200);
} else {
// 显示完整标题后，重置字符计数器并重新开始滚动
charCount = 0;
titleScroll = setTimeout(scrollTitle, 2000);
}
}
// 页面加载后开始滚动显示标题
window.onload = function() {
scrollTitle();
}
// 当页面失去焦点时停止滚动，获得焦点时恢复滚动
window.onblur = function() {
clearTimeout(titleScroll);
}
window.onfocus = function() {
scrollTitle();
}
</script>
</head>
<body>
<!-- 在这里可以放置页面的内容 -->
</body>
</html></pre><p>上述代码中，我们定义了一个 <code>scrollTitle</code> 函数，用于实现标题的滚动显示效果。该函数通过递归调用 <code>setTimeout</code> 函数实现定时滚动。在每次滚动时，我们使用 <code>substring</code> 方法来截取标题的前面部分，并将其赋值给 <code><title></code> 标签，实现标题的滚动效果。当显示完整标题后，我们会将字符计数器重置为0，并在一定时间后重新开始滚动。</p><p>接下来，我们需要实现限制显示字符数的功能。一种简单的方式是修改 <code>scrollTitle</code> 函数，在对标题进行截取前，先限制标题的字符数。以下是修改后的代码示例：</p><pre class="brush:javascript;toolbar:false;"> // 定义滚动显示标题的函数
function scrollTitle() {
// 截取指定长度的标题
var truncatedTitle = title.substring(0, charCount);
// 修改页面标题
document.title = truncatedTitle;
// 如果还没有显示完整标题，继续滚动
if (charCount <= title.length) {
charCount++;
titleScroll = setTimeout(scrollTitle, 200);
} else {
// 显示完整标题后，重置字符计数器并重新开始滚动
charCount = 0;
titleScroll = setTimeout(scrollTitle, 2000);
}
}</pre><p>在上述代码中，我们使用 <code>substring</code> 方法截取指定长度的标题，并将其赋值给 <code><title></code> 标签，实现限制字符数的效果。每次滚动时，我们将字符计数器增加 1，并在递归调用中判断是否还有剩余字符需要滚动显示。</p><p>通过以上代码示例，我们可以实现页面标题的滚动显示效果，并且限制显示的字符数。你可以将以上代码拷贝到 HTML 文件中，并在合适的位置放置页面的内容，例如在 <code><body></code> 标签中添加其他元素或者文本。当页面加载完成后，页面标题就会以滚动的方式显示在浏览器的标题栏中。同时，你可以根据需要修改代码中的滚动速度、滚动间隔和字符数限制等参数，以获得更好的滚动显示效果。</p><p>今天关于《如何使用 JavaScript 实现页面标题的滚动显示效果同时限制显示字符数？》的内容介绍就到此结束，如果有什么疑问或者建议，可以在golang学习网公众号下多多回复交流；文中若有不正之处，也希望回复留言以告知！</p> </div>
<div class="labsList">
<a href="javascript:;" class="aLightGray" title="JavaScript">JavaScript</a>
<a href="javascript:;" class="aLightGray" title="滚动显示">滚动显示</a>
<a href="javascript:;" class="aLightGray" title="页面标题">页面标题</a>
</div>
</div>
<!-- 最新阅读 -->
<div class="contBoxNor">
<div class="contTit">
<div class="tit">相关阅读</div>
<a href="/articlelist.html" class="more">更多></a>
</div>
<ul class="latestReadList">
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1年前 |
<a href="javascript:;" class="aLightGray" title="提升">提升</a>
<a href="javascript:;" class="aLightGray" title="箭头函数">箭头函数</a>
<a href="javascript:;" class="aLightGray" title="函数表达式">函数表达式</a>
<a href="javascript:;" class="aLightGray" title="函数声明">函数声明</a>
<a href="javascript:;" class="aLightGray" title="Function构造函数">Function构造函数</a>
</div>
<div class="tit lineOverflow"><a href="/article/207000.html" title="JavaScript函数定义及示例详解" class="aBlack">JavaScript函数定义及示例详解</a></div>
<div class="opt">
<span><i class="view"></i>502</span>
<span class="collectBtn user_collection" data-id="207000" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="智能体">智能体</a>
</div>
<div class="tit lineOverflow"><a href="/article/621422.html" title="智能体安全引领产业升级——国内AI安全产品市场深度分析" class="aBlack">智能体安全引领产业升级——国内AI安全产品市场深度分析</a></div>
<div class="opt">
<span><i class="view"></i>501</span>
<span class="collectBtn user_collection" data-id="621422" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 2个月前 |
</div>
<div class="tit lineOverflow"><a href="/article/619053.html" title="CSS变量简化按钮悬停效果技巧" class="aBlack">CSS变量简化按钮悬停效果技巧</a></div>
<div class="opt">
<span><i class="view"></i>501</span>
<span class="collectBtn user_collection" data-id="619053" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 2个月前 |
</div>
<div class="tit lineOverflow"><a href="/article/618916.html" title="JavaScript符号类型详解与应用" class="aBlack">JavaScript符号类型详解与应用</a></div>
<div class="opt">
<span><i class="view"></i>501</span>
<span class="collectBtn user_collection" data-id="618916" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 2个月前 |
</div>
<div class="tit lineOverflow"><a href="/article/612539.html" title="HTML剪贴板复制粘贴怎么用" class="aBlack">HTML剪贴板复制粘贴怎么用</a></div>
<div class="opt">
<span><i class="view"></i>501</span>
<span class="collectBtn user_collection" data-id="612539" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
</ul>
</div>
<!-- 最新阅读 -->
<div class="contBoxNor">
<div class="contTit">
<div class="tit">最新阅读</div>
<a href="/articlelist.html" class="more">更多></a>
</div>
<ul class="latestReadList">
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
</div>
<div class="tit lineOverflow"><a href="/article/621552.html" title="CSS corner-shape 怎么做可控异形圆角：border-radius、superellipse() 与降级验收" class="aBlack">CSS corner-shape 怎么做可控异形圆角：border-radius、superellipse() 与降级验收</a></div>
<div class="opt">
<span><i class="view"></i>155</span>
<span class="collectBtn user_collection" data-id="621552" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="/articletag/4729_new_0_1.html" class="aLightGray" title="css">css</a> ·
<a href="/articletag/39953_new_0_1.html" class="aLightGray" title="前端工程">前端工程</a> ·
<a href="/articletag/40054_new_0_1.html" class="aLightGray" title="浏览器API">浏览器API</a> ·
<a href="javascript:;" class="aLightGray" title="CSS reading-flow">CSS reading-flow</a>
<a href="javascript:;" class="aLightGray" title="reading-order">reading-order</a>
<a href="javascript:;" class="aLightGray" title="Grid无障碍">Grid无障碍</a>
</div>
<div class="tit lineOverflow"><a href="/article/621520.html" title="CSS reading-flow 怎么让 Grid 视觉顺序和 Tab 顺序一致：reading-order 与降级" class="aBlack">CSS reading-flow 怎么让 Grid 视觉顺序和 Tab 顺序一致：reading-order 与降级</a></div>
<div class="opt">
<span><i class="view"></i>124</span>
<span class="collectBtn user_collection" data-id="621520" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
</div>
<div class="tit lineOverflow"><a href="/article/621487.html" title="浏览器目录授权怎么做：权限复查与传统上传降级" class="aBlack">浏览器目录授权怎么做：权限复查与传统上传降级</a></div>
<div class="opt">
<span><i class="view"></i>251</span>
<span class="collectBtn user_collection" data-id="621487" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="/articletag/4729_new_0_1.html" class="aLightGray" title="css">css</a> ·
<a href="/articletag/5401_new_0_1.html" class="aLightGray" title="前端开发">前端开发</a> ·
<a href="/articletag/40701_new_0_1.html" class="aLightGray" title="浏览器新特性">浏览器新特性</a> ·
<a href="/articletag/40702_new_0_1.html" class="aLightGray" title="动画">动画</a> ·
<a href="javascript:;" class="aLightGray" title="CSS">CSS</a>
<a href="javascript:;" class="aLightGray" title="动画">动画</a>
<a href="javascript:;" class="aLightGray" title="渐变">渐变</a>
<a href="javascript:;" class="aLightGray" title="自定义属性">自定义属性</a>
<a href="javascript:;" class="aLightGray" title="@property">@property</a>
</div>
<div class="tit lineOverflow"><a href="/article/621449.html" title="CSS @property 自定义属性怎么让渐变可插值：语法注册、继承与降级验收" class="aBlack">CSS @property 自定义属性怎么让渐变可插值：语法注册、继承与降级验收</a></div>
<div class="opt">
<span><i class="view"></i>443</span>
<span class="collectBtn user_collection" data-id="621449" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="交叉类型">交叉类型</a>
</div>
<div class="tit lineOverflow"><a href="/article/621441.html" title="TypeScript 交叉类型" class="aBlack">TypeScript 交叉类型</a></div>
<div class="opt">
<span><i class="view"></i>400</span>
<span class="collectBtn user_collection" data-id="621441" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="模板字面量类型">模板字面量类型</a>
</div>
<div class="tit lineOverflow"><a href="/article/621440.html" title="TypeScript 模板字面量类型" class="aBlack">TypeScript 模板字面量类型</a></div>
<div class="opt">
<span><i class="view"></i>233</span>
<span class="collectBtn user_collection" data-id="621440" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="JavaScript">JavaScript</a>
</div>
<div class="tit lineOverflow"><a href="/article/621439.html" title="TypeScript 从 JavaScript 迁移" class="aBlack">TypeScript 从 JavaScript 迁移</a></div>
<div class="opt">
<span><i class="view"></i>275</span>
<span class="collectBtn user_collection" data-id="621439" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="infer">infer</a>
</div>
<div class="tit lineOverflow"><a href="/article/621438.html" title="TypeScript infer 关键字" class="aBlack">TypeScript infer 关键字</a></div>
<div class="opt">
<span><i class="view"></i>318</span>
<span class="collectBtn user_collection" data-id="621438" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="协变与逆变">协变与逆变</a>
</div>
<div class="tit lineOverflow"><a href="/article/621437.html" title="TypeScript 协变与逆变" class="aBlack">TypeScript 协变与逆变</a></div>
<div class="opt">
<span><i class="view"></i>202</span>
<span class="collectBtn user_collection" data-id="621437" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="路径映射">路径映射</a>
</div>
<div class="tit lineOverflow"><a href="/article/621435.html" title="TypeScript 路径映射 paths" class="aBlack">TypeScript 路径映射 paths</a></div>
<div class="opt">
<span><i class="view"></i>480</span>
<span class="collectBtn user_collection" data-id="621435" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="项目引用">项目引用</a>
</div>
<div class="tit lineOverflow"><a href="/article/621434.html" title="TypeScript 项目引用 References" class="aBlack">TypeScript 项目引用 References</a></div>
<div class="opt">
<span><i class="view"></i>208</span>
<span class="collectBtn user_collection" data-id="621434" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
<li>
<div class="info">
<a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> ·
<a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>
| 1天前 |
<a href="javascript:;" class="aLightGray" title="monorepo">monorepo</a>
</div>
<div class="tit lineOverflow"><a href="/article/621432.html" title="TypeScript Monorepo 配置" class="aBlack">TypeScript Monorepo 配置</a></div>
<div class="opt">
<span><i class="view"></i>336</span>
<span class="collectBtn user_collection" data-id="621432" data-type="article" title="收藏"><i class="collect"></i>收藏</span>
</div>
</li>
</ul>
</div>
<!-- 课程推荐 -->
<div class="contBoxNor">
<div class="contTit">
<div class="tit">课程推荐</div>
<a href="/courselist.html" class="more">更多></a>
</div>
<ul class="classRecomList">
<li>
<a href="/course/9.html" title="前端进阶之JavaScript设计模式" class="img_box">
<img src="/uploads/20221222/52fd0f23a454c71029c2c72d206ed815.jpg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="前端进阶之JavaScript设计模式">
</a>
<dl>
<dt class="lineOverflow">
前端进阶之JavaScript设计模式 </dt>
<dd class="cont1 lineOverflow">设计模式是开发人员在软件开发过程中面临一般问题时的解决方案，代表了最佳的实践。本课程的主打内容包括JS常见设计模式以及具体应用场景，打造一站式知识长龙服务，适合有JS基础的同学学习。</dd>
<dd class="cont2">
<a href="/course/9.html" title="前端进阶之JavaScript设计模式" class="toStudy">立即学习</a>
<span>543次学习</span>
</dd>
</dl>
</li>
<li>
<a href="/course/2.html" title="GO语言核心编程课程" class="img_box">
<img src="/uploads/20221221/634ad7404159bfefc6a54a564d437b5f.png" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="GO语言核心编程课程">
</a>
<dl>
<dt class="lineOverflow">
GO语言核心编程课程 </dt>
<dd class="cont1 lineOverflow">本课程采用真实案例，全面具体可落地，从理论到实践，一步一步将GO核心编程技术、编程思想、底层实现融会贯通，使学习者贴近时代脉搏，做IT互联网时代的弄潮儿。</dd>
<dd class="cont2">
<a href="/course/2.html" title="GO语言核心编程课程" class="toStudy">立即学习</a>
<span>516次学习</span>
</dd>
</dl>
</li>
<li>
<a href="/course/74.html" title="简单聊聊mysql8与网络通信" class="img_box">
<img src="/uploads/20240103/bad35fe14edbd214bee16f88343ac57c.png" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="简单聊聊mysql8与网络通信">
</a>
<dl>
<dt class="lineOverflow">
简单聊聊mysql8与网络通信 </dt>
<dd class="cont1 lineOverflow">如有问题加微信：Le-studyg；在课程中，我们将首先介绍MySQL8的新特性，包括性能优化、安全增强、新数据类型等，帮助学生快速熟悉MySQL8的最新功能。接着，我们将深入解析MySQL的网络通信机制，包括协议、连接管理、数据传输等，让</dd>
<dd class="cont2">
<a href="/course/74.html" title="简单聊聊mysql8与网络通信" class="toStudy">立即学习</a>
<span>500次学习</span>
</dd>
</dl>
</li>
<li>
<a href="/course/57.html" title="JavaScript正则表达式基础与实战" class="img_box">
<img src="/uploads/20221226/bbe4083bb3cb0dd135fb02c31c3785fb.jpg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="JavaScript正则表达式基础与实战">
</a>
<dl>
<dt class="lineOverflow">
JavaScript正则表达式基础与实战 </dt>
<dd class="cont1 lineOverflow">在任何一门编程语言中,正则表达式,都是一项重要的知识,它提供了高效的字符串匹配与捕获机制,可以极大的简化程序设计。</dd>
<dd class="cont2">
<a href="/course/57.html" title="JavaScript正则表达式基础与实战" class="toStudy">立即学习</a>
<span>487次学习</span>
</dd>
</dl>
</li>
<li>
<a href="/course/28.html" title="从零制作响应式网站—Grid布局" class="img_box">
<img src="/uploads/20221223/ac110f88206daeab6c0cf38ebf5fe9ed.jpg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="从零制作响应式网站—Grid布局">
</a>
<dl>
<dt class="lineOverflow">
从零制作响应式网站—Grid布局 </dt>
<dd class="cont1 lineOverflow">本系列教程将展示从零制作一个假想的网络科技公司官网，分为导航，轮播，关于我们，成功案例，服务流程，团队介绍，数据部分，公司动态，底部信息等内容区块。网站整体采用CSSGrid布局，支持响应式，有流畅过渡和展现动画。</dd>
<dd class="cont2">
<a href="/course/28.html" title="从零制作响应式网站—Grid布局" class="toStudy">立即学习</a>
<span>485次学习</span>
</dd>
</dl>
</li>
</ul>
</div>
</div>
<!-- footer -->
<div class="footer">
<ul>
<li ><a href="/" class="aLightGray"><em class="navIcon navIconHome"></em><span>首页</span></a></li>
<li class="curr"><a href="/articlelist.html" class="aLightGray"><em class="navIcon navIconRead"></em><span>阅读</span></a></li>
<li ><a href="/courselist.html" class="aLightGray"><em class="navIcon navIconCourse"></em><span>课程</span></a></li>
<li ><a href="/ai.html" class="aLightGray"><em class="navIcon navIconAi"></em><span>AI助手</span></a></li>
<li ><a href="/user.html" class="aLightGray"><em class="navIcon navIconUser"></em><span>我的</span></a></li>
</ul>
</div>
<script src="/assets/js/frontend/common.js" defer></script>
<script src="/assets/js/juejin-theme.js?v=20260613b" defer></script>
<script>
var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?e34c3e8ab31ba35d7e1c48ea8d77315f";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();
</script>
</body>
</html>
