jquery can add elements to the page. Adding method: 1. Use "Element Object.append("Insert Content")" to add elements at the end of the element; 2. Use "Element Object.prepend("Insert Content")" to add elements at the beginning of the element; 3. Use "Element object.after("Insert content")" adds elements after the selected element; 4. Use "Element object.before("Insert content")" to add elements after the selected element.
The operating environment of this tutorial: windows10 system, jquery3.4.1 version, Dell G3 computer.
Can jquery add elements to the page
Can jquery add elements to the page
append() - Insert content at the end of the selected element
$(selector).append(content,function(index,html))
The example is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>12</title>
<script src="js/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("#btn1").click(function(){
$("p").append(" <b>插入文本</b>.");
});
$("#btn2").click(function(){
$("ol").append("<li>插入项</li>");
});
});
</script>
</head>
<body>
<p>这是一个段落。</p>
<p>这是另一个段落</p>
<ol>
<li>列表项 1</li>
<li>列表项 2</li>
<li>列表项 3</li>
</ol>
<button id="btn1">插入文本</button>
<button id="btn2">插入列表项</button>
</body>
</html>Output result:
prepend() - Insert content at the beginning of the selected element
Examples are as follows:
$(document).ready(function(){
$("#btn1").click(function(){
$("p").prepend(" <b>插入文本</b>.");
});
$("#btn2").click(function(){
$("ol").prepend("<li>插入项</li>");
});
});Output result:
after() - Insert content after the selected element
$(document).ready(function(){
$("#btn1").click(function(){
$("p").after(" <b>插入文本</b>.");
});
$("#btn2").click(function(){
$("ol").after("<li>插入项</li>");
});
});Output result:
- ##before() - Insert content before the selected element
$(document).ready(function(){
$("#btn1").click(function(){
$("p").before(" <b>插入文本</b>.");
});
$("#btn2").click(function(){
$("ol").before("<li>插入项</li>");
});
});Output result:
The above is the detailed content of Can jquery add elements to the page?. For more information, please follow other related articles on the PHP Chinese website!
React and the Frontend: Building Interactive ExperiencesApr 11, 2025 am 12:02 AMReact is the preferred tool for building interactive front-end experiences. 1) React simplifies UI development through componentization and virtual DOM. 2) Components are divided into function components and class components. Function components are simpler and class components provide more life cycle methods. 3) The working principle of React relies on virtual DOM and reconciliation algorithm to improve performance. 4) State management uses useState or this.state, and life cycle methods such as componentDidMount are used for specific logic. 5) Basic usage includes creating components and managing state, and advanced usage involves custom hooks and performance optimization. 6) Common errors include improper status updates and performance issues, debugging skills include using ReactDevTools and Excellent
React and the Frontend Stack: The Tools and TechnologiesApr 10, 2025 am 09:34 AMReact is a JavaScript library for building user interfaces, with its core components and state management. 1) Simplify UI development through componentization and state management. 2) The working principle includes reconciliation and rendering, and optimization can be implemented through React.memo and useMemo. 3) The basic usage is to create and render components, and the advanced usage includes using Hooks and ContextAPI. 4) Common errors such as improper status update, you can use ReactDevTools to debug. 5) Performance optimization includes using React.memo, virtualization lists and CodeSplitting, and keeping code readable and maintainable is best practice.
React's Role in HTML: Enhancing User ExperienceApr 09, 2025 am 12:11 AMReact combines JSX and HTML to improve user experience. 1) JSX embeds HTML to make development more intuitive. 2) The virtual DOM mechanism optimizes performance and reduces DOM operations. 3) Component-based management UI to improve maintainability. 4) State management and event processing enhance interactivity.
React Components: Creating Reusable Elements in HTMLApr 08, 2025 pm 05:53 PMReact components can be defined by functions or classes, encapsulating UI logic and accepting input data through props. 1) Define components: Use functions or classes to return React elements. 2) Rendering component: React calls render method or executes function component. 3) Multiplexing components: pass data through props to build a complex UI. The lifecycle approach of components allows logic to be executed at different stages, improving development efficiency and code maintainability.
React Strict Mode PurposeApr 02, 2025 pm 05:51 PMReact Strict Mode is a development tool that highlights potential issues in React applications by activating additional checks and warnings. It helps identify legacy code, unsafe lifecycles, and side effects, encouraging modern React practices.
React Fragments UsageApr 02, 2025 pm 05:50 PMReact Fragments allow grouping children without extra DOM nodes, enhancing structure, performance, and accessibility. They support keys for efficient list rendering.
React Reconciliation ProcessApr 02, 2025 pm 05:49 PMThe article discusses React's reconciliation process, detailing how it efficiently updates the DOM. Key steps include triggering reconciliation, creating a Virtual DOM, using a diffing algorithm, and applying minimal DOM updates. It also covers perfo
The Virtual DOM ExplainedApr 02, 2025 pm 05:49 PMThe article discusses the Virtual DOM, a key concept in web development that enhances performance by minimizing direct DOM manipulation and optimizing updates.
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
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
WebStorm Mac version
Useful JavaScript development tools
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
SublimeText3 Linux new version
SublimeText3 Linux latest version
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
