Use jQuery to easily delete the last child element: detailed steps
Title: Simple and easy-to-understand jQuery example: steps to delete the last child element
In web development, it is often necessary to operate DOM elements, including deleting elements. is a common operation. This article will introduce how to use jQuery to delete the last child element in an element and provide specific code examples.
The implementation steps are as follows:
- Ensure that the jQuery library is introduced into the page, which can be introduced through a CDN link or locally.
- Write the HTML structure and create a parent element containing child elements. The sample code is as follows:
<div id="parentElement"> <p>子元素1</p> <p>子元素2</p> <p>子元素3</p> </div>
- Use the jQuery selector to select the parent element, and then use
children ()
method selects the last child element, and determines the last child element through thelast()
method. The code example is as follows:
$("#parentElement").children().last().remove();
In the above code , $("#parentElement").children().last()
selects all child elements under the parent element #parentElement
, and uses last()
The method selects the last child element, and finally uses the remove()
method to remove it from the DOM.
- Write a complete HTML file and integrate the above code together:
删除最后一个子元素示例 <script> $(document).ready(function() { $("#parentElement").children().last().remove(); }); </script>子元素1
子元素2
子元素3
Through the above steps, we successfully implemented the use of jQuery to delete the last child in an element The function of the element. This example is simple and easy to understand, and is suitable for beginners to quickly master the basic methods of jQuery operating DOM elements. We hope that readers can use the guidance of this article to become more proficient in using jQuery to operate page elements and improve development efficiency.
The above is the detailed content of Use jQuery to easily delete the last child element: detailed steps. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Frequently Asked Questions and Solutions for Front-end Thermal Paper Ticket Printing In Front-end Development, Ticket Printing is a common requirement. However, many developers are implementing...

There is no absolute salary for Python and JavaScript developers, depending on skills and industry needs. 1. Python may be paid more in data science and machine learning. 2. JavaScript has great demand in front-end and full-stack development, and its salary is also considerable. 3. Influencing factors include experience, geographical location, company size and specific skills.

How to merge array elements with the same ID into one object in JavaScript? When processing data, we often encounter the need to have the same ID...

JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.

In-depth discussion of the root causes of the difference in console.log output. This article will analyze the differences in the output results of console.log function in a piece of code and explain the reasons behind it. �...

Discussion on the realization of parallax scrolling and element animation effects in this article will explore how to achieve similar to Shiseido official website (https://www.shiseido.co.jp/sb/wonderland/)...

JavaScript can be run in PowerPoint, and can be implemented by calling external JavaScript files or embedding HTML files through VBA. 1. To use VBA to call JavaScript files, you need to enable macros and have VBA programming knowledge. 2. Embed HTML files containing JavaScript, which are simple and easy to use but are subject to security restrictions. Advantages include extended functions and flexibility, while disadvantages involve security, compatibility and complexity. In practice, attention should be paid to security, compatibility, performance and user experience.

Learning JavaScript is not difficult, but it is challenging. 1) Understand basic concepts such as variables, data types, functions, etc. 2) Master asynchronous programming and implement it through event loops. 3) Use DOM operations and Promise to handle asynchronous requests. 4) Avoid common mistakes and use debugging techniques. 5) Optimize performance and follow best practices.
