Example of JavaScript controlled navigation menu-JS Tutorial-php.cn

This article mainly introduces the example code of the navigation menu controlled by js. Friends who need it can come and refer to it. I hope it will be helpful to everyone.

This menu effect is controlled by scripts and styles. , it is very good learning content for novices:

This small code was used to sort out this menu while watching Strictly Come Dancing last night. Let’s take a look at it. Once you know it, you can review the past and learn new things. No. You can learn from the idea. In fact, I just want to improve this front-end idea and make it no longer unfamiliar:

This is the menu part in the master page of asp.net

Html part:

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>        
   " id="masterid" /> 首页 医院概况 医院文化 医院动态 医院服务 就诊指南 科室介绍

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Look at the css part. This is to distinguish the selected item from other items:

#master .head .nav a.check{ background:url(../images/navbg.png) 1px 1px no-repeat; color:#fff;}

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The following is the js part that gives life to html. It makes the web page move:

$(document).ready(function () {//表示要在网页加载之后运行 var current = $("#masterid").val();//通过jquery方式获取id=masterid的页面元素的值，其实就是为了获取选中的那个菜单 var alist = new Array();//定义数组 if (current == "") {//要是没有获取到选中的菜单，我们就忽略这个 current = -1; } $("#nav>a").each(function (i, items) {//这个部分就是在你点击了菜单一项后，还么有刷新页面时候的样式变化，哈哈，each是一个遍历函数，会遍历#nav>a的集合。 alist[i] = $(items);//i是从0开始到遍历集合结束为止，自增1的 $(alist[i]).click(function () {//对alist[i]进行注册点击事件，点击就会执行对应的方法， if (i != current) {//要是选择了不同的菜单项，就会给选择的菜单加上应有的样式，而之前的就会去除样式 $(this).addClass("check"); $(alist[current]).removeClass("check"); current = i;//返回新选择的菜单项id } }); }); $("#nav>a").each(function (i, items) {//这是在页面跳转到新页面后对页面样式的处理，让菜单的样式正确调用。 alist[i] = $(items); if (i != current) { $(alist[i]).removeClass("check"); } }); $(alist[current]).addClass("check"); });

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Okay, you can try it quickly.

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