jQuery implementation of div following mouse movement method explained
This article mainly introduces jQuery to implement p following the mouse movement in detail. It has certain reference value. Interested friends can refer to it. I hope it can help everyone.
The key point is to figure out how to get the current position and position of the mouse, the current position and the position of p after the move:
Use jQuery to realize that p moves with the movement of the mouse, not the position of the mouse itself! ! But the movement of p relative to the previous position
The code is as follows: (pay attention to the explanation of the green part)
<!DOCTYPE html>
<html>
<head>
<meta charset="{utf-8}">
<title></title>
<script src="../jquery-3.2.0.js"></script>
<style>
.aa{
height: 100px;
width: 200px;
position: absolute;
background-color: green;
}
</style>
</head>
<body>
<p class="aa"></p>
</body>
</html>
<script>
$(".aa").mousedown(function(e){
//设置移动后的默认位置
var endx=0;
var endy=0;
//获取p的初始位置，要注意的是需要转整型，因为获取到值带px
var left= parseInt($(".aa").css("left"));
var top = parseInt($(".aa").css("top"));
//获取鼠标按下时的坐标，区别于下面的es.pageX,es.pageY
var downx=e.pageX;
var downy=e.pageY; //pageY的y要大写，必须大写！！
// 鼠标按下时给p挂事件
$(".aa").bind("mousemove",function(es){
//es.pageX,es.pageY:获取鼠标移动后的坐标
var endx= es.pageX-downx+left; //计算p的最终位置
var endy=es.pageY-downy+top;
//带上单位
$(".aa").css("left",endx+"px").css("top",endy+"px")
});
})
$(".aa").mouseup(function(){
//鼠标弹起时给p取消事件
$(".aa").unbind("mousemove")
})
</script>is different from the following code: ( The final effect is that p moves with the mouse position. If you want to see the specific effect, you can paste, copy and compare to see where the difference is)
<script>
$(".aa").mousedown(function(e){
$(document).bind("mousemove",function(e){
$(".aa").css("left",e.pageX).css("top",e.pageY)
});
})
$(".aa").mouseup(function(){
$(document).unbind("mousemove")
})
</script>Related recommendations:
10 classic web mouse special effects sections to share
jQuery mouse movement method to achieve magnification effect on pictures
WeChat How to implement mouse drag effect in mini program
The above is the detailed content of jQuery implementation of div following mouse movement method explained. For more information, please follow other related articles on the PHP Chinese website!
Python vs. JavaScript: Development Environments and ToolsApr 26, 2025 am 12:09 AMBoth Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.
Is JavaScript Written in C? Examining the EvidenceApr 25, 2025 am 12:15 AMYes, the engine core of JavaScript is written in C. 1) The C language provides efficient performance and underlying control, which is suitable for the development of JavaScript engine. 2) Taking the V8 engine as an example, its core is written in C, combining the efficiency and object-oriented characteristics of C. 3) The working principle of the JavaScript engine includes parsing, compiling and execution, and the C language plays a key role in these processes.
JavaScript's Role: Making the Web Interactive and DynamicApr 24, 2025 am 12:12 AMJavaScript is at the heart of modern websites because it enhances the interactivity and dynamicity of web pages. 1) It allows to change content without refreshing the page, 2) manipulate web pages through DOMAPI, 3) support complex interactive effects such as animation and drag-and-drop, 4) optimize performance and best practices to improve user experience.
C and JavaScript: The Connection ExplainedApr 23, 2025 am 12:07 AMC and JavaScript achieve interoperability through WebAssembly. 1) C code is compiled into WebAssembly module and introduced into JavaScript environment to enhance computing power. 2) In game development, C handles physics engines and graphics rendering, and JavaScript is responsible for game logic and user interface.
From Websites to Apps: The Diverse Applications of JavaScriptApr 22, 2025 am 12:02 AMJavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.
Python vs. JavaScript: Use Cases and Applications ComparedApr 21, 2025 am 12:01 AMPython is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.
The Role of C/C in JavaScript Interpreters and CompilersApr 20, 2025 am 12:01 AMC and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.
JavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AMJavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.
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
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
Zend Studio 13.0.1
Powerful PHP integrated development environment
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
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.
Notepad++7.3.1
Easy-to-use and free code editor
