Sharing of jquery version carousel effect and extend extension examples
This article mainly introduces the effect of the jquery version of the carousel image in detail, as well as the related information of extend. It has certain reference value. Interested friends can refer to it. I hope it can help everyone.
The specific code is as follows
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
*{
margin:0;
padding:0;
font-size:14px;
-webkit-user-select:none;
}
ul,li{
list-style:none;
}
img{
display:block;
border:none;
}
a{
text-decoration: none;
}
.banner{
position:relative;
margin:10px auto;
width:1000px;
height:300px;
overflow:hidden;
}
.bannerInner{
width:100%;
height:100%;
background:url("../img/default.gif") no-repeat center center;
}
.bannerInner p{
position:absolute;
top:0;
left:0;
z-index:0;
width:100%;
height:100%;
opacity: 0;
filter:alpha(opacity=0);
}
.bannerInner p img{
display:none;
width:100%;
height:100%;
}
.banner .bannerTip{
position:absolute;
right:20px;
bottom:20px;
z-index:10;
overflow:hidden;
}
.banner .bannerTip li{
float:left;
margin-left:10px;
width:18px;
height:18px;
background:lightblue;
border-radius:50%;
cursor:pointer;
}
.banner .bannerTip li.bg{
background:orange;
}
.banner a{
display:none;
position:absolute;
top:50%;
margin-top:-22.5px;
z-index:10;
width:30px;
height:45px;
opacity: 0.5;
filter:alpha(opacity=50);
background-image:url('../img/pre.png');
}
.banner a.bannerLeft{
left:20px;
background-position:0 0;
}
.banner a.bannerRight{
right:20px;
background-position:-50px 0;
}
.banner a:hover{
opacity: 1;
filter:alpha(opacity=100);
}
</style>
</head>
<body>
<p class='banner' id='bannerFir'>
<p class='bannerInner'>
<p><img src="/static/imghwm/default1.png" data-src="" alt=" class="lazy" alt="" trueImg='img/banner1.jpg'></p>
<p><img src="/static/imghwm/default1.png" data-src="" alt=" class="lazy" alt="" trueImg='img/banner2.jpg'></p>
<p><img src="/static/imghwm/default1.png" data-src="" alt=" class="lazy" alt="" trueImg='img/banner3.jpg'></p>
<p><img src="/static/imghwm/default1.png" data-src="" alt=" class="lazy" alt="" trueImg='img/banner4.jpg'></p>
</p>
<ul class='bannerTip'>
<li class='bg'></li>
<li></li>
<li></li>
<li></li>
</ul>
<a href="javascript:;" rel="external nofollow" rel="external nofollow" class='bannerLeft'></a>
<a href="javascript:;" rel="external nofollow" rel="external nofollow" class='bannerRight'></a>
</p>
<script>
jQuery.fn.extend({
banner:myBanner
})
//通过jQuery选择器或者筛选的方法获取到的jQuery集合是不存在dom映射机制的，之前获取到的dom集合，之后再页面中HTML结构改变了，集合中的内容不会跟着自动发生变化（JS获取的元素集合有DOM映射的机制）
function myBanner(selector,ajaxURL,interval){
var $banner = $("#"+selector);
var $bannerInner = $banner.children(".bannerInner"),$pList = null,$imgList = null;
var $bannerTip = $banner.children(".bannerTip"),$oLis = null
var $bannerLeft = $banner.children(".bannerLeft"),$bannerRight = $banner.children(".bannerRight")
//1、Ajax读取数据
var jsonData = null;
$.ajax({
url:ajaxURL+"?_="+Math.random(),
type:'get',
dataType::"json",
async:false,//当前的请求是同步的
success:function(data){
jsonData = data;
}
})
//2、实现数据的绑定
function bindData(){
var str = "",str2 = "";
if(jsonData){
//原生的jsonData使用$.each()
$.each(jsonData,function(index,item){
str+='<p><img src="/static/imghwm/default1.png" data-src="" alt=" class="lazy" alt="" trueImg="'+item["img"]+'"></p>';
index===0?str2+='<li class="bg"></li>':str2+='<li></li>'
})
$bannerInner.html(str);
$bannerTip.html(str2);
$pList = $bannerInner.children("p")
$imgList = $bannerInner.find('img')
$oLis = $bannerTip.children("li")
}
}
//3、实现图片的延迟加载
window.setTimeout(lazyImg,500);
function lazyImg(){
//jquery元素集合 直接写$imgList.each()
$imgList.each(function(index,item){
var _this = this;
var oImg = new Image;
oImg.src = $(this).attr("trueImg");//$(this)等价于$(item)
oImg.onload = function(){
$(_this).prop('src',this.src).css("display","block")//内置属性使用prop
}
})
$pList.eq(0).css("zIndex",1).animate({opacity:1},300);
}
//封装一个轮播图切换的效果
function changeBanner(){
var $curp = $pList.eq(step);
$curp.css("zIndex",1).siblings().css("zIndex",0);
$curp.animate({opacity:1},300,function(){
$(this).siblings().css("opacity",0)
})
$oLis.eq(step).addClass("bg").siblings().removeClass('bg')
}
//4、实现自动轮播
interval = interval || 3000;
var step = 0,autoTimer = null;
autoTimer = window.setInterval(autoMove,interval)
function autoMove(){
if(step === jsonData.length-1){
step = -1;
}
step++;
changeBanner();
}
//5、控制左右按钮的显示隐藏和自动轮播的开始和暂停
$banner.on('mouseover',function(){
window.clearInterval(autoTimer);
$bannerLeft.css("display","block")
$bannerRight.css("display","block")
}).on('mouseout',function(){
autoTimer = window.setInterval(autoMove,interval);
$bannerLeft.css("display","none")
$bannerRight.css("display","none")
})
//6、实现焦点切换
$oLis.on('click',function(){
step = $(this).index();
changeBanner();
})
//7、实现左右切换
$bannerRight.on('click',autoMove);
$bannerLeft.on('click',function(){
if(step===0){
step = jsonData.length;
}
step--;
changeBanner();
});
}
//外部使用
$().banner("bannerFir","json/banner.txt",1000)
</script>
</body>
</html>Related recommendations:
Detailed example of jquery to achieve the effect of the left and right carousel image
The above is the detailed content of Sharing of jquery version carousel effect and extend extension examples. For more information, please follow other related articles on the PHP Chinese website!
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.
JavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AMThe main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.
Understanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AMUnderstanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.
Python vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AMPython is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.
Python vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AMPython and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.
From C/C to JavaScript: How It All WorksApr 14, 2025 am 12:05 AMThe shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.
JavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AMDifferent JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.
Beyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AMJavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.
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
SublimeText3 Linux new version
SublimeText3 Linux latest version
Dreamweaver Mac version
Visual web development tools
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
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.
SublimeText3 Mac version
God-level code editing software (SublimeText3)
