jquery sets a content

In website development, we often need to modify the link text on the page (that is, the content in the a tag). An easy way is to use the relevant methods in the jQuery library. The following is the specific implementation method.

First, we need to have an HTML page containing an a tag, for example:

<a href="http://www.example.com">原始链接内容</a>。

Next, we can use the text() method in the jQuery library to modify the content in the a tag . The text() method can obtain the plain text content in the matching element collection or replace the content of all matching elements. We can pass in the new link text as a parameter of the text() method, for example:

$( "a" ).text( "新的链接内容" );

In this way, the content of the a tag is modified to "new link content". If we want to modify the contents of multiple a tags on the page, we only need to add the same class attribute name to these a tags as follows, and then use jQuery's selector to select these elements to modify their contents at once:

<a href="http://www.example.com" class="my-link">原始链接内容</a>。
<a href="http://www.example2.com" class="my-link">另一个链接</a>。
...
$( ".my-link" ).text( "新的链接内容" );

At this time, all the content of a tag containing the class attribute named "my-link" will be changed to "new link content".

However, it should be noted that using the text() method can only modify the text content in the a tag, but cannot modify other attributes. If we want to modify the href attribute, we must use the attr() method. The attr() method can obtain or change the attribute value of the matching element, for example:

<a href="http://www.example.com" class="my-link">原始链接内容</a>。
<a href="http://www.example2.com" class="my-link">另一个链接</a>。
...
$( ".my-link" ).attr( "href", "http://www.new-example.com" );

In this way, the href attribute of all a tags containing the class attribute named "my-link" will be changed to "http: //www.new-example.com".

Using the jQuery library can easily modify the content and attributes of elements on the page. And, since jQuery is a popular JavaScript library, it has a wide range of applications and plenty of resources and tutorials to refer to. I hope this article can help you quickly master the method of using jQuery to modify the content and attributes of a tag.

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