jQuery jQuery on()方法，jqueryon方法
jQuery jQuery on()方法，jqueryon方法
jQuery on()方法是官方推荐的绑定事件的一个方法。
$(selector).on(event,childSelector,data,function,map)
由此扩展开来的几个以前常见的方法有.
<strong>bind()</strong>
$("p").bind("click",function(){
alert("The paragraph was clicked.");
});
$("p").on("click",function(){
alert("The paragraph was clicked.");
});
<strong>delegate()</strong>
$("#div1").on("click","p",function(){
$(this).css("background-color","pink");
});<br />
$("#div2").delegate("p","click",function(){
$(this).css("background-color","pink");
});
<strong>live()</strong>
$("#div1").on("click",function(){
$(this).css("background-color","pink");
});<br />
$("#div2").live("click",function(){
$(this).css("background-color","pink");
});
以上三种方法在jQuery1.8之后都不推荐使用，官方在1.9时已经取消使用live()方法了，所以建议都使用on()方法。
tip:如果你需要移除on()所绑定的方法，可以使用off()方法处理。
$(document).ready(function(){
$("p").on("click",function(){
$(this).css("background-color","pink");
});
$("button").click(function(){
$("p").off("click");
});
});tip:如果你的事件只需要一次的操作，可以使用one()这个方法
$(document).ready(function(){
$("p").one("click",function(){
$(this).animate({fontSize:"+=6px"});
});
});trigger()绑定
$(selector).trigger(event,eventObj,param1,param2,...)
$(document).ready(function(){
$("input").select(function(){
$("input").after(" Text marked!");
});
$("button").click(function(){
$("input").trigger("select");
});
});多个事件绑定同一个函数
$(document).ready(function(){
$("p").on("mouseover mouseout",function(){
$("p").toggleClass("intro");
});
});多个事件绑定不同函数
$(document).ready(function(){
$("p").on({
mouseover:function(){$("body").css("background-color","lightgray");},
mouseout:function(){$("body").css("background-color","lightblue");},
click:function(){$("body").css("background-color","yellow");}
});
});绑定自定义事件
$(document).ready(function(){
$("p").on("myOwnEvent", function(event, showName){
$(this).text(showName + "! What a beautiful name!").show();
});
$("button").click(function(){
$("p").trigger("myOwnEvent",["Anja"]);
});
});传递数据到函数
function handlerName(event)
{
alert(event.data.msg);
}
$(document).ready(function(){
$("p").on("click", {msg: "You just clicked me!"}, handlerName)
});适用于未创建的元素
$(document).ready(function(){
$("div").on("click","p",function(){
$(this).slideToggle();
});
$("button").click(function(){
$("<p>This is a new paragraph.</p>").insertAfter("button");
});
});
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
How to write a novel in the Tomato Free Novel app. Share the tutorial on how to write a novel in Tomato Novel.
Mar 28, 2024 pm 12:50 PM
Tomato Novel is a very popular novel reading software. We often have new novels and comics to read in Tomato Novel. Every novel and comic is very interesting. Many friends also want to write novels. Earn pocket money and edit the content of the novel you want to write into text. So how do we write the novel in it? My friends don’t know, so let’s go to this site together. Let’s take some time to look at an introduction to how to write a novel. Share the Tomato novel tutorial on how to write a novel. 1. First open the Tomato free novel app on your mobile phone and click on Personal Center - Writer Center. 2. Jump to the Tomato Writer Assistant page - click on Create a new book at the end of the novel.
How to enter bios on Colorful motherboard? Teach you two methods
Mar 13, 2024 pm 06:01 PM
Colorful motherboards enjoy high popularity and market share in the Chinese domestic market, but some users of Colorful motherboards still don’t know how to enter the bios for settings? In response to this situation, the editor has specially brought you two methods to enter the colorful motherboard bios. Come and try it! Method 1: Use the U disk startup shortcut key to directly enter the U disk installation system. The shortcut key for the Colorful motherboard to start the U disk with one click is ESC or F11. First, use Black Shark Installation Master to create a Black Shark U disk boot disk, and then turn on the computer. When you see the startup screen, continuously press the ESC or F11 key on the keyboard to enter a window for sequential selection of startup items. Move the cursor to the place where "USB" is displayed, and then
How to recover deleted contacts on WeChat (simple tutorial tells you how to recover deleted contacts)
May 01, 2024 pm 12:01 PM
Unfortunately, people often delete certain contacts accidentally for some reasons. WeChat is a widely used social software. To help users solve this problem, this article will introduce how to retrieve deleted contacts in a simple way. 1. Understand the WeChat contact deletion mechanism. This provides us with the possibility to retrieve deleted contacts. The contact deletion mechanism in WeChat removes them from the address book, but does not delete them completely. 2. Use WeChat’s built-in “Contact Book Recovery” function. WeChat provides “Contact Book Recovery” to save time and energy. Users can quickly retrieve previously deleted contacts through this function. 3. Enter the WeChat settings page and click the lower right corner, open the WeChat application "Me" and click the settings icon in the upper right corner to enter the settings page.
How to set font size on mobile phone (easily adjust font size on mobile phone)
May 07, 2024 pm 03:34 PM
Setting font size has become an important personalization requirement as mobile phones become an important tool in people's daily lives. In order to meet the needs of different users, this article will introduce how to improve the mobile phone use experience and adjust the font size of the mobile phone through simple operations. Why do you need to adjust the font size of your mobile phone - Adjusting the font size can make the text clearer and easier to read - Suitable for the reading needs of users of different ages - Convenient for users with poor vision to use the font size setting function of the mobile phone system - How to enter the system settings interface - In Find and enter the "Display" option in the settings interface - find the "Font Size" option and adjust it. Adjust the font size with a third-party application - download and install an application that supports font size adjustment - open the application and enter the relevant settings interface - according to the individual
The secret of hatching mobile dragon eggs is revealed (step by step to teach you how to successfully hatch mobile dragon eggs)
May 04, 2024 pm 06:01 PM
Mobile games have become an integral part of people's lives with the development of technology. It has attracted the attention of many players with its cute dragon egg image and interesting hatching process, and one of the games that has attracted much attention is the mobile version of Dragon Egg. To help players better cultivate and grow their own dragons in the game, this article will introduce to you how to hatch dragon eggs in the mobile version. 1. Choose the appropriate type of dragon egg. Players need to carefully choose the type of dragon egg that they like and suit themselves, based on the different types of dragon egg attributes and abilities provided in the game. 2. Upgrade the level of the incubation machine. Players need to improve the level of the incubation machine by completing tasks and collecting props. The level of the incubation machine determines the hatching speed and hatching success rate. 3. Collect the resources required for hatching. Players need to be in the game
BTCC tutorial: How to bind and use MetaMask wallet on BTCC exchange?
Apr 26, 2024 am 09:40 AM
MetaMask (also called Little Fox Wallet in Chinese) is a free and well-received encryption wallet software. Currently, BTCC supports binding to the MetaMask wallet. After binding, you can use the MetaMask wallet to quickly log in, store value, buy coins, etc., and you can also get 20 USDT trial bonus for the first time binding. In the BTCCMetaMask wallet tutorial, we will introduce in detail how to register and use MetaMask, and how to bind and use the Little Fox wallet in BTCC. What is MetaMask wallet? With over 30 million users, MetaMask Little Fox Wallet is one of the most popular cryptocurrency wallets today. It is free to use and can be installed on the network as an extension
How to bind a sub-account on Xiaohongshu? How does it check whether the account is normal?
Mar 21, 2024 pm 10:11 PM
In today's era of information explosion, the construction of personal brand and corporate image has become increasingly important. As the leading fashion life sharing platform in China, Xiaohongshu has attracted a large number of user attention and participation. For those users who want to expand their influence and improve the efficiency of content dissemination, binding sub-accounts has become an effective means. So, how does Xiaohongshu bind a sub-account? How to check whether the account is normal? This article will answer these questions for you in detail. 1. How to bind a sub-account on Xiaohongshu? 1. Log in to your main account: First, you need to log in to your Xiaohongshu main account. 2. Open the settings menu: click "Me" in the upper right corner, and then select "Settings". 3. Enter account management: In the settings menu, find the "Account Management" or "Account Assistant" option and click
Quickly master: How to open two WeChat accounts on Huawei mobile phones revealed!
Mar 23, 2024 am 10:42 AM
In today's society, mobile phones have become an indispensable part of our lives. As an important tool for our daily communication, work, and life, WeChat is often used. However, it may be necessary to separate two WeChat accounts when handling different transactions, which requires the mobile phone to support logging in to two WeChat accounts at the same time. As a well-known domestic brand, Huawei mobile phones are used by many people. So what is the method to open two WeChat accounts on Huawei mobile phones? Let’s reveal the secret of this method. First of all, you need to use two WeChat accounts at the same time on your Huawei mobile phone. The easiest way is to
