List of common jQuery events
[List of commonly used events in jQuery, specific code examples are required]
jQuery is a popular JavaScript library that is widely used in web development. In jQuery, event handling is a very important part. Through events, we can achieve interactive and dynamic effects on the page. This article will introduce commonly used events in jQuery, including click events, mouse events, keyboard events, etc., and provide specific code examples.
1. Click event
1. click event
The click event is an event triggered when an element is clicked. It can be obtained through the click()
method. Bind the handler function of the click event.
$("#btn").click(function(){ alert("按钮被点击了!"); });
2. dblclick event
The dblclick event is an event triggered when an element is double-clicked. The handler function of the dblclick event can be bound through the dblclick()
method.
$("#box").dblclick(function(){ alert("盒子被双击了!"); });
2. Mouse events
1. mouseenter and mouseleave events
mouseenter and mouseleave events are triggered when the mouse enters and leaves the element respectively. They can be passed mouseenter( )
and mouseleave()
methods to bind the handler function.
$("#box").mouseenter(function(){ $(this).css("background-color", "red"); }).mouseleave(function(){ $(this).css("background-color", "white"); });
2. Hover event
The hover event is triggered when the mouse enters and leaves the element, and the handler function can be bound through the hover()
method.
$("#box").hover(function(){ $(this).css("background-color", "blue"); }, function(){ $(this).css("background-color", "white"); });
3. Keyboard events
1. keydown, keypress and keyup events
keydown, keypress and keyup events are triggered when the keyboard keys are pressed, held down and released respectively , the processing function can be bound through the corresponding method.
$(document).keydown(function(event){ console.log("按下了键:" + event.key); }); $(document).keypress(function(){ console.log("按住键不放。"); }); $(document).keyup(function(){ console.log("释放了键。"); });
4. Other common events
In addition to the above-mentioned common events, jQuery also supports other events, such as change, submit, resize, etc. These events can also be bound to handler functions through corresponding methods.
$("#input").change(function(){ alert("输入框内容发生了变化。"); }); $("#form").submit(function(){ alert("表单提交了。"); }); $(window).resize(function(){ alert("窗口大小发生了变化。"); });
In projects, reasonable use of these events can add interactivity and user experience to the page. I hope the content of this article can be helpful to the majority of developers.
Conclusion
Through the introduction of this article, we have learned about the commonly used events in jQuery and their corresponding code examples. These events are commonly used interactive methods in web development, and mastering them can help developers achieve richer page effects. I hope readers can improve their front-end skills through practice and continuous learning.
The above is the detailed content of List of common jQuery events. 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

AI Hentai Generator
Generate AI Hentai for free.

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

layui provides a variety of methods for obtaining form data, including directly obtaining all field data of the form, obtaining the value of a single form element, using the formAPI.getVal() method to obtain the specified field value, serializing the form data and using it as an AJAX request parameter, and listening Form submission event gets data.

How to add click event to image in Vue? Import the Vue instance. Create a Vue instance. Add images to HTML templates. Add click events using the v-on:click directive. Define the handleClick method in the Vue instance.

There are the following methods for front-end and back-end interaction using layui: $.ajax method: Simplify asynchronous HTTP requests. Custom request object: allows sending custom requests. Form control: handles form submission and data validation. Upload control: easily implement file upload.

Introduction to HarmonyOS and Go language development HarmonyOS is a distributed operating system developed by Huawei, and Go is a modern programming language. The combination of the two provides a powerful solution for developing distributed applications. This article will introduce how to use Go language for development in HarmonyOS, and deepen understanding through practical cases. Installation and Setup To use Go language to develop HarmonyOS applications, you need to install GoSDK and HarmonyOSSDK first. The specific steps are as follows: #Install GoSDKgogetgithub.com/golang/go#Set PATH

Layui login page jump setting steps: Add jump code: Add judgment in the login form submit button click event, and jump to the specified page through window.location.href after successful login. Modify the form configuration: add a hidden input field to the form element of lay-filter="login", with the name "redirect" and the value being the target page address.

Answer: JavaScript provides a variety of methods for obtaining web page elements, including using ids, tag names, class names, and CSS selectors. Detailed description: getElementById(id): Get elements based on unique id. getElementsByTagName(tag): Gets the element group with the specified tag name. getElementsByClassName(class): Gets the element group with the specified class name. querySelector(selector): Use CSS selector to get the first matching element. querySelectorAll(selector): Get all matches using CSS selector

Servlet serves as a bridge for client-server communication in Java Web applications and is responsible for: processing client requests; generating HTTP responses; dynamically generating Web content; responding to customer interactions; managing HTTP session state; and providing security protection.

The event-driven mechanism in concurrent programming responds to external events by executing callback functions when events occur. In C++, the event-driven mechanism can be implemented with function pointers: function pointers can register callback functions to be executed when events occur. Lambda expressions can also implement event callbacks, allowing the creation of anonymous function objects. The actual case uses function pointers to implement GUI button click events, calling the callback function and printing messages when the event occurs.
