title is a special node element in HTML. Because it can use document.getElementsByTagName("title")[0] to get the title tag of the web page, but it cannot use document.getElementsByTagName("title")[0] .innerHtml is used to change its value. After testing, there are two ways to modify native js, and it can also be easily set in jQuery. Friends who are not sure can find out.
innerText method
Through console.log(document.getElementsByTagName("title")[0]), we found that the
label can be printed, and there are only text nodes in the label. , so I guessed that it could only recognize TextNode, so I used innerText to set the value of title, and it succeeded. </p>
<p class="jb51code"><br></p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>document.getElementsByTagName("title")[0].innerText = '需要设置的值';</pre><div class="contentsignin">Copy after login</div></div><p>document.title method<br/></p><p>After testing, the value of title can also be set through document.title. </p><p class="jb51code"><br/></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 = '需要设置的值'; # 设置title的值。</pre><div class="contentsignin">Copy after login</div></div><p>Example</p><p class="jb51code"><br/></p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>window.onfocus = function () {
document.title = '恢复正常了...';
};
window.onblur = function () {
document.title = '快回来~页面崩溃了';
};</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 when switching browser tabs, the title changes. </p><p>jQuery method<br/></p><p>Of course, if your project relies on jQuery, you can use the jq method to set it</p><p class="jb51code"><br/></p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>$('title').html('')
$('title').text('')</pre><div class="contentsignin">Copy after login</div></div><p>jq Both methods can be achieved</p>
<p>Summary<br></p>
<p>In native js, we can dynamically modify the title of the web page through innerText and document.title.<br></p>## In #jq, we can modify it through $('title').html('') or $('title').text(''). <p></p>Related recommendations:<p></p>
<p>Modify the browser's User-Agent in php to disguise your browser and operating system<a href="http://www.php.cn/php-weizijiaocheng-341714.html" target="_self"></a></p>
<p>JavaScript modification Browser tab title tips_javascript tips<a href="http://www.php.cn/js-tutorial-9590.html" target="_self"></a></p>
<p>Use JavaScript to modify the implementation code of the browser URL address bar_javascript tips<a href="http://www.php.cn/js-tutorial-15862.html" target="_self"></a></p><p>The above is the detailed content of Javascript modification browser title method example sharing. For more information, please follow other related articles on the PHP Chinese website!</p>
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