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Remove descendant tags in jquery

WBOYOriginal: 2023-05-28 12:05:07471browse

jQuery is a JavaScript library that simplifies the way JavaScript is used on the client side. It makes it easier to find and manipulate DOM elements in HTML documents. In this article, I will explain how to remove descendant tags using jQuery.

First, let us consider the following HTML code:

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>删除后代标签</title>
   <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
</head>
<body>
   <div id="parent">
      <p>This is parent element.</p>
      <div id="child">
         <p>This is child element.</p>
      </div>
   </div>
</body>
</html>

In this example, we have an HTML document containing a parent div and a child div within it. We will use jQuery to find the child div element and delete it.

In order to remove the child div, we need to use the jQuery selector to find the element. The way to find elements using jQuery is very simple. We can use selectors to find one or more elements, and they can be tags, classes, IDs or any other specified attributes.

In this example, we will use the "#child" selector to select the div element with the ID "child". We will use the .remove() function to remove the element from the DOM. Let’s look at this code:

$(document).ready(function(){
   $("#child").remove();
});

Let’s briefly explain this code snippet. First, we use the $(document).ready() function to ensure that the DOM is fully loaded before performing the operation. In this example, we want the DOM to delete the child div after it is loaded. Next, we use the $("#child") selector to find the element with the ID "child" and then use the .remove() function to remove it from the DOM.

Now, if you open this HTML document in your browser, you will see that the child div has been removed. In this example, we used jQuery to delete the child div element, but we can use the same method to delete any other element of the selection.

In short, jQuery is a very powerful JavaScript library that makes it very easy to search for DOM elements in HTML documents and operate on them. In this article, we explored how to find and remove descendant tags using jQuery. This will help you better understand how jQuery works and enable you to implement your needs faster.

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