How to use jQuery to modify the title of a web page

jQuery is a JavaScript library for simplifying HTML document traversal and event handling. It makes web development faster, easier and more elegant. In web development, we sometimes need to use jQuery to modify the title of the web page, such as dynamically adding some content to the title of the web page after the web page is loaded.

This article will introduce how to use jQuery to modify the title of a web page.

Step one: Introduce the jQuery library

Introduce the jQuery library into the head tag of the web page.

<script src="https://cdn.jsdelivr.net/jquery/3.5.1/jquery.min.js"></script>

Step 2: Get the title of the current web page

Before using jQuery to modify the title of the web page, we need to get the title of the current web page first. You can use the following code to get the title of the current web page.

var currentTitle = $("title").text();

The jQuery selector is used here to obtain the title element of the web page, and then the text method is used to obtain the text content of the element as the current title.

Step 3: Modify the title of the web page

We can use jQuery's text method to directly modify the title of the web page. For example, we can append a new string to the current title to make the web page title carry more information.

$("title").text(currentTitle + " - My website");

Here, the current title is concatenated with a string, and then the result is set as the new content of the web page title. Now, the page title becomes "Current title - My website".

We can also use other jQuery methods to modify the title of the web page, such as the html method, replaceWith method, etc. The usage of these methods is similar to the text method, except that the way to change the title of the web page is different.

$("title").html(currentTitle + " <span>- My website</span>");

Here, the current title is spliced ​​with a span tag with style, and then the html method is used to replace the content of the web page title. The page title now changes to "Current title - My website".

Conclusion:

It is very easy and convenient to use jQuery to modify the title of a web page. You only need to introduce the jQuery library, obtain the title of the current web page and use the jQuery method to modify the title of the web page, and you can dynamically modify the title of the web page. This allows us to be more free and creative in web development, making the user experience of the website richer and optimized.

The above is the detailed content of How to use jQuery to modify the title of a web page. For more information, please follow other related articles on the PHP Chinese website!