Home Web Front-end JS Tutorial How to change the title title with javascript

How to change the title title with javascript

Jun 11, 2021 pm 05:49 PM
javascript title

Change method: 1. Use the "document.getElementsByTagName("title")[0].innerText="value that needs to be set";" statement to modify; 2. Use "document.title="Need to set The value of ";" statement to modify.

How to change the title title with javascript

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

javascript to change the title title

1. innerText method

through console. log(document.getElementsByTagName("title")[0]), I found that the label can be printed. There are only text nodes in the label, so I guess it can only recognize TextNode, so I used innerText to set the value of title, and it succeeded. . </p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>document.getElementsByTagName("title")[0].innerText = &#39;需要设置的值&#39;;</pre><div class="contentsignin">Copy after login</div></div><p><strong>2. document.title method</strong><br/></p><p>After testing, the value of title can also be set through document.title. </p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>console.log(document.title); # 可以获取title的值。 document.title = &#39;需要设置的值&#39;; # 设置title的值。</pre><div class="contentsignin">Copy after login</div></div><p>Example</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>window.onfocus = function () { document.title = &#39;恢复正常了...&#39;; }; window.onblur = function () { document.title = &#39;快回来~页面崩溃了&#39;; };</pre><div class="contentsignin">Copy after login</div></div><p>We change the value of title when the browser gains focus and loses focus. You can find that the title changes when switching browser tabs. </p> <p>For more programming related knowledge, please visit: <a href="https://www.php.cn/course.html" target="_blank" textvalue="编程视频">Programming Video</a>! ! </p><p>The above is the detailed content of How to change the title title with javascript. For more information, please follow other related articles on the PHP Chinese website!</p> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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This article will introduce how to use WebSocket and JavaScript to implement an online speech recognition system.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/633480.html" title="WebSocket and JavaScript: key technologies for implementing real-time monitoring systems" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/465/014/170280543760094.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="WebSocket and JavaScript: key technologies for implementing real-time monitoring systems" /> </a> <a href="https://www.php.cn/faq/633480.html" title="WebSocket and JavaScript: key technologies for implementing real-time monitoring systems" class="phphistorical_Version2_mids_title">WebSocket and JavaScript: key technologies for implementing real-time monitoring systems</a> <span class="Articlelist_txts_time">Dec 17, 2023 pm 05:30 PM</span> <p class="Articlelist_txts_p">WebSocket and JavaScript: Key technologies for realizing real-time monitoring systems Introduction: With the rapid development of Internet technology, real-time monitoring systems have been widely used in various fields. One of the key technologies to achieve real-time monitoring is the combination of WebSocket and JavaScript. This article will introduce the application of WebSocket and JavaScript in real-time monitoring systems, give code examples, and explain their implementation principles in detail. 1. WebSocket technology</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/633365.html" title="How to use JavaScript and WebSocket to implement a real-time online ordering system" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170278617570921.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to use JavaScript and WebSocket to implement a real-time online ordering system" /> </a> <a href="https://www.php.cn/faq/633365.html" title="How to use JavaScript and WebSocket to implement a real-time online ordering system" class="phphistorical_Version2_mids_title">How to use JavaScript and WebSocket to implement a real-time online ordering system</a> <span class="Articlelist_txts_time">Dec 17, 2023 pm 12:09 PM</span> <p class="Articlelist_txts_p">Introduction to how to use JavaScript and WebSocket to implement a real-time online ordering system: With the popularity of the Internet and the advancement of technology, more and more restaurants have begun to provide online ordering services. In order to implement a real-time online ordering system, we can use JavaScript and WebSocket technology. WebSocket is a full-duplex communication protocol based on the TCP protocol, which can realize real-time two-way communication between the client and the server. In the real-time online ordering system, when the user selects dishes and places an order</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/633311.html" title="How to implement an online reservation system using WebSocket and JavaScript" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170277714783917.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to implement an online reservation system using WebSocket and JavaScript" /> </a> <a href="https://www.php.cn/faq/633311.html" title="How to implement an online reservation system using WebSocket and JavaScript" class="phphistorical_Version2_mids_title">How to implement an online reservation system using WebSocket and JavaScript</a> <span class="Articlelist_txts_time">Dec 17, 2023 am 09:39 AM</span> <p class="Articlelist_txts_p">How to use WebSocket and JavaScript to implement an online reservation system. In today's digital era, more and more businesses and services need to provide online reservation functions. It is crucial to implement an efficient and real-time online reservation system. This article will introduce how to use WebSocket and JavaScript to implement an online reservation system, and provide specific code examples. 1. What is WebSocket? WebSocket is a full-duplex method on a single TCP connection.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/633476.html" title="JavaScript and WebSocket: Building an efficient real-time weather forecasting system" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/465/014/170280442251580.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="JavaScript and WebSocket: Building an efficient real-time weather forecasting system" /> </a> <a href="https://www.php.cn/faq/633476.html" title="JavaScript and WebSocket: Building an efficient real-time weather forecasting system" class="phphistorical_Version2_mids_title">JavaScript and WebSocket: Building an efficient real-time weather forecasting system</a> <span class="Articlelist_txts_time">Dec 17, 2023 pm 05:13 PM</span> <p class="Articlelist_txts_p">JavaScript and WebSocket: Building an efficient real-time weather forecast system Introduction: Today, the accuracy of weather forecasts is of great significance to daily life and decision-making. As technology develops, we can provide more accurate and reliable weather forecasts by obtaining weather data in real time. In this article, we will learn how to use JavaScript and WebSocket technology to build an efficient real-time weather forecast system. This article will demonstrate the implementation process through specific code examples. We</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/642543.html" title="Simple JavaScript Tutorial: How to Get HTTP Status Code" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170444932683164.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Simple JavaScript Tutorial: How to Get HTTP Status Code" /> </a> <a href="https://www.php.cn/faq/642543.html" title="Simple JavaScript Tutorial: How to Get HTTP Status Code" class="phphistorical_Version2_mids_title">Simple JavaScript Tutorial: How to Get HTTP Status Code</a> <span class="Articlelist_txts_time">Jan 05, 2024 pm 06:08 PM</span> <p class="Articlelist_txts_p">JavaScript tutorial: How to get HTTP status code, specific code examples are required. Preface: In web development, data interaction with the server is often involved. When communicating with the server, we often need to obtain the returned HTTP status code to determine whether the operation is successful, and perform corresponding processing based on different status codes. This article will teach you how to use JavaScript to obtain HTTP status codes and provide some practical code examples. Using XMLHttpRequest</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/630681.html" title="How to use insertBefore in javascript" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to use insertBefore in javascript" /> </a> <a href="https://www.php.cn/faq/630681.html" title="How to use insertBefore in javascript" class="phphistorical_Version2_mids_title">How to use insertBefore in javascript</a> <span class="Articlelist_txts_time">Nov 24, 2023 am 11:56 AM</span> <p class="Articlelist_txts_p">Usage: In JavaScript, the insertBefore() method is used to insert a new node in the DOM tree. This method requires two parameters: the new node to be inserted and the reference node (that is, the node where the new node will be inserted).</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/633281.html" title="JavaScript and WebSocket: Building an efficient real-time image processing system" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170277372169688.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="JavaScript and WebSocket: Building an efficient real-time image processing system" /> </a> <a href="https://www.php.cn/faq/633281.html" title="JavaScript and WebSocket: Building an efficient real-time image processing system" class="phphistorical_Version2_mids_title">JavaScript and WebSocket: Building an efficient real-time image processing system</a> <span class="Articlelist_txts_time">Dec 17, 2023 am 08:41 AM</span> <p class="Articlelist_txts_p">JavaScript is a programming language widely used in web development, while WebSocket is a network protocol used for real-time communication. Combining the powerful functions of the two, we can create an efficient real-time image processing system. This article will introduce how to implement this system using JavaScript and WebSocket, and provide specific code examples. First, we need to clarify the requirements and goals of the real-time image processing system. Suppose we have a camera device that can collect real-time image data</p> </div> </div> <a href="https://www.php.cn/web-designer.html" class="phpgenera_Details_mainL4_botton"> <span>See all articles</span> <img src="/static/imghw/down_right.png" alt="" /> </a> </div> </div> </div> </main> <footer> <div class="footer"> <div class="footertop"> <img src="/static/imghw/logo.png" alt=""> <p>Public welfare online PHP training,Help PHP learners grow quickly!</p> </div> <div class="footermid"> <a href="https://www.php.cn/about/us.html">About us</a> <a href="https://www.php.cn/about/disclaimer.html">Disclaimer</a> <a href="https://www.php.cn/update/article_0_1.html">Sitemap</a> </div> <div class="footerbottom"> <p> © php.cn All rights reserved </p> </div> </div> </footer> <input type="hidden" id="verifycode" value="/captcha.html"> <script>layui.use(['element', 'carousel'], function () {var element = layui.element;$ = layui.jquery;var carousel = layui.carousel;carousel.render({elem: '#test1', width: '100%', height: '330px', arrow: 'always'});$.getScript('/static/js/jquery.lazyload.min.js', function () {$("img").lazyload({placeholder: "/static/images/load.jpg", effect: "fadeIn", threshold: 200, skip_invisible: false});});});</script> <script src="/static/js/common_new.js"></script> <script type="text/javascript" src="/static/js/jquery.cookie.js?1744875877"></script> <script src="https://vdse.bdstatic.com//search-video.v1.min.js"></script> <link rel='stylesheet' id='_main-css' href='/static/css/viewer.min.css?2' type='text/css' media='all' /> <script type='text/javascript' src='/static/js/viewer.min.js?1'></script> <script type='text/javascript' src='/static/js/jquery-viewer.min.js'></script> <script type="text/javascript" src="/static/js/global.min.js?5.5.53"></script> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function () { var u = "https://tongji.php.cn/"; _paq.push(['setTrackerUrl', u + 'matomo.php']); _paq.push(['setSiteId', '9']); var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0]; g.async = true; g.src = u + 'matomo.js'; s.parentNode.insertBefore(g, s); })(); </script> <script> // top layui.use(function () { var util = layui.util; util.fixbar({ on: { mouseenter: function (type) { layer.tips(type, this, { tips: 4, fixed: true, }); }, mouseleave: function (type) { layer.closeAll("tips"); }, }, }); }); document.addEventListener("DOMContentLoaded", (event) => { // 定义一个函数来处理滚动链接的点击事件 function setupScrollLink(scrollLinkId, targetElementId) { const scrollLink = document.getElementById(scrollLinkId); const targetElement = document.getElementById(targetElementId); if (scrollLink && targetElement) { scrollLink.addEventListener("click", (e) => { e.preventDefault(); // 阻止默认链接行为 targetElement.scrollIntoView({ behavior: "smooth" }); // 平滑滚动到目标元素 }); } else { console.warn( `Either scroll link with ID '${scrollLinkId}' or target element with ID '${targetElementId}' not found.` ); } } // 使用该函数设置多个滚动链接 setupScrollLink("Article_Details_main1L2s_1", "article_main_title1"); setupScrollLink("Article_Details_main1L2s_2", "article_main_title2"); setupScrollLink("Article_Details_main1L2s_3", "article_main_title3"); setupScrollLink("Article_Details_main1L2s_4", "article_main_title4"); setupScrollLink("Article_Details_main1L2s_5", "article_main_title5"); setupScrollLink("Article_Details_main1L2s_6", "article_main_title6"); // 可以继续添加更多的滚动链接设置 }); window.addEventListener("scroll", function () { var fixedElement = document.getElementById("Article_Details_main1Lmain"); var scrollTop = window.scrollY || document.documentElement.scrollTop; // 兼容不同浏览器 var clientHeight = window.innerHeight || document.documentElement.clientHeight; // 视口高度 var scrollHeight = document.documentElement.scrollHeight; // 页面总高度 // 计算距离底部的距离 var distanceToBottom = scrollHeight - scrollTop - clientHeight; // 当距离底部小于或等于300px时,取消固定定位 if (distanceToBottom <= 980) { fixedElement.classList.remove("Article_Details_main1Lmain"); fixedElement.classList.add("Article_Details_main1Lmain_relative"); } else { // 否则,保持固定定位 fixedElement.classList.remove("Article_Details_main1Lmain_relative"); fixedElement.classList.add("Article_Details_main1Lmain"); } }); </script> </body> </html>