Javascript 使用jQuery激活多个lavel下拉菜单集
当我点击菜单示例“C”时,我想将类设置为活动。在重新加载页面后,它也应该处于活动状态Javascript 使用jQuery激活多个lavel下拉菜单集,javascript,jquery,cookies,Javascript,Jquery,Cookies,当我点击菜单示例“C”时,我想将类设置为活动。在重新加载页面后,它也应该处于活动状态 <ul class="nav metismenu" id="side-menu"> <li> <a href="#">Dashboards</a> <ul class="nav nav-second-level collapse"> <li><a href="#A"&g
<ul class="nav metismenu" id="side-menu">
<li>
<a href="#">Dashboards</a>
<ul class="nav nav-second-level collapse">
<li><a href="#A">A</a></li>
<li><a href="#B">B</a></li>
<li><a href="#C">C</a></li>
<li><a href="#D">D</a></li>
<li><a href="#E">E</a></li>
</ul>
</li>
<li>
<a href="F">F</a>
</li>
</ul>
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要将类设置为活动,代码为:
<ul class="nav metismenu" id="side-menu">
<li class="active">
<a href="#">Dashboards</a>
<ul class="nav nav-second-level collapse">
<li><a href="#A">A</a></li>
<li><a href="#B">B</a></li>
<li class="active"><a href="#C">C</a></li>
<li><a href="#D">D</a></li>
<li><a href="#E">E</a></li>
</ul>
</li>
<li>
<a href="F">F</a>
</li>
</ul>
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首先,我邀请您了解更多关于
因此,对于这种情况,这里是Working Fiddle=>
我在小提琴中使用了JQuery(别忘了在源代码中使用JQuery)
ps:对于安全问题,代码段不能在这里工作
JS:
$( document ).ready(function(){
if(typeof(getCookie("activeLi")) != "undefined" && getCookie("activeLi").length>0){
$('#side-menu ul a[ href=' + getCookie("activeLi") + ']').parent().addClass("active");
}
$("#side-menu ul a").click(function(a){
if(typeof(getCookie("activeLi")) != "undefined");
alert(getCookie("activeLi"));
removeActive();
$(this).parent().addClass("active");
setActiveCookie(this.getAttribute("href"));
});
});
function removeActive(){
$("#side-menu ul li").each(function(li){
$(this).removeClass("active");
})
}
function setActiveCookie(active){
//document.cookie="activeLi="+active;
var d = new Date();
d.setTime(d.getTime() + (30*24*60*60*1000)); // expire in 30 days
var expires = "expires="+d.toUTCString();
document.cookie="activeLi="+active+"; " + expires;
}
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1);
if (c.indexOf(name) == 0) return c.substring(name.length,c.length);
}
return "";
}
.active a {
color: green;
}
a {
text-decoration: none;
}
<ul class="nav metismenu" id="side-menu">
<li>
<a href="#">Dashboards</a>
<ul class="nav nav-second-level collapse">
<li><a href="#A">A</a></li>
<li><a href="#B">B</a></li>
<li><a href="#C">C</a></li>
<li><a href="#D">D</a></li>
<li><a href="#E">E</a></li>
</ul>
</li>
<li>
<a href="F">F</a>
</li>
HTML:
$( document ).ready(function(){
if(typeof(getCookie("activeLi")) != "undefined" && getCookie("activeLi").length>0){
$('#side-menu ul a[ href=' + getCookie("activeLi") + ']').parent().addClass("active");
}
$("#side-menu ul a").click(function(a){
if(typeof(getCookie("activeLi")) != "undefined");
alert(getCookie("activeLi"));
removeActive();
$(this).parent().addClass("active");
setActiveCookie(this.getAttribute("href"));
});
});
function removeActive(){
$("#side-menu ul li").each(function(li){
$(this).removeClass("active");
})
}
function setActiveCookie(active){
//document.cookie="activeLi="+active;
var d = new Date();
d.setTime(d.getTime() + (30*24*60*60*1000)); // expire in 30 days
var expires = "expires="+d.toUTCString();
document.cookie="activeLi="+active+"; " + expires;
}
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1);
if (c.indexOf(name) == 0) return c.substring(name.length,c.length);
}
return "";
}
.active a {
color: green;
}
a {
text-decoration: none;
}
<ul class="nav metismenu" id="side-menu">
<li>
<a href="#">Dashboards</a>
<ul class="nav nav-second-level collapse">
<li><a href="#A">A</a></li>
<li><a href="#B">B</a></li>
<li><a href="#C">C</a></li>
<li><a href="#D">D</a></li>
<li><a href="#E">E</a></li>
</ul>
</li>
<li>
<a href="F">F</a>
</li>
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你能给我们看看你的JavaScript吗?不,我不能给我们看我的JavaScript,这太令人伤心了。。祝你好运:)看看上面的答案!你的回答对我帮助很大。谢谢你的赏识