Develop Reference

Trying to add active class to menu item

I've spent 2 hours trying to create an active menu with no success, so I figured I would ask for help. I have an html menu, some js & css...
$(function() {
var pgurl = window.location.href.substr(window.location.href
.lastIndexOf("/") + 1);
$("#index li a").each(function() {
if ($(this).attr("href") == pgurl || $(this).attr("href") == '')
$(this).addClass("active");
})
});
.active { font-weight:bold;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id='index'>
<div class='container'>
<div class='top'>
<h1><a href='/' title='The Maths Project'>The Maths Project</a></h1>
</div>
<ul class='section active_section' id='section_2'>
<li><span id='section_title_2' class='section_title'><a href='#' id='section_link_2'>Against the odds.</a></span>
<ul>
<li id='exhibit_106' class='exhibit_title'> → Introduction
</li>
<li id='exhibit_83' class='exhibit_title'><a href='../against-the-odds/deriving-functions'> → Deriving functions</a>
</li>
<li id='exhibit_83' class='exhibit_title'><a href='../against-the-odds/exploiting-odds'> → Exploiting odds</a>
</li>
</ul>
</li>
</ul>
<ul class='section' id='section_3'>
<li><span id='section_title_3' class='section_title'><a href='http://themathsproject.co.uk' id='section_link_3'>Remembering everything.</a></span>
<ul>
<li id='exhibit_104' class='exhibit_title'><a href='../against-the-odds/black-swans'>black swans</a>
</li>
<li id='exhibit_72' class='exhibit_title'><a href='../against-the-odds/in-here-it-is-yesterday'>in here it is yesterday </a>
</li>
</ul>
</li>
</ul>
</div>
</div>
When the user is on a specific page, the "a" link which they have clicked should become bold. However, for whatever reason it's not working.
I would greatly appreciate any help,
Regards,
Jack

I am not clear with your question but do you want set active class to menu, so you try the below code
$('#navlist a').click(function(e) {
e.preventDefault(); //prevent the link from being followed
$('#navlist a').removeClass('selected');
$(this).addClass('selected');
});
.nav {
color: green;
}
.selected {
color: red;
}
.san ul li{
float:left;
margin-right: 25px;
}
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.js"></script>
<div class="san">
<ul id="navlist">
<li><a class="nav" href="">Home</a></li>
<li><a class="nav" href="">About Us</a></li>
<li><a class="nav" href="">Services</a></li>
<li><a class="nav" href="">Contact</a></li>
</ul>
</div>

This line gets the page name:
var pgurl = window.location.href.substr(window.location.href
.lastIndexOf("/") + 1);
you need to apply the same logic to each of your links to see if they match:
$("#index li a").each(function() {
var aurl = $(this).attr("href").substr($(this).attr("href")
.lastIndexOf("/")+1);
if (aurl == pgurl || aurl == '')
$(this).addClass("active");
})
Snippet below (tweaked to match as location.href won't match)
$(function() {
//var pgurl = window.location.href.substr(window.location.href
// .lastIndexOf("/") + 1);
var locationhref = "mysite.com/against-the-odds/introduction"
var pgurl = locationhref.substr(locationhref.lastIndexOf("/")+1);
$("#index li a").each(function() {
var aurl = $(this).attr("href").substr($(this).attr("href")
.lastIndexOf("/")+1);
//console.log(aurl)
if (aurl == pgurl || aurl == '')
$(this).addClass("active");
})
});
.active { font-weight:bold;color:yellow;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id='index'>
<div class='container'>
<div class='top'>
<h1><a href='/' title='The Maths Project'>The Maths Project</a></h1>
</div>
<ul class='section active_section' id='section_2'>
<li><span id='section_title_2' class='section_title'><a href='#' id='section_link_2'>Against the odds.</a></span>
<ul>
<li id='exhibit_106' class='exhibit_title'> → Introduction
</li>
<li id='exhibit_83' class='exhibit_title'><a href='../against-the-odds/deriving-functions'> → Deriving functions</a>
</li>
<li id='exhibit_83' class='exhibit_title'><a href='../against-the-odds/exploiting-odds'> → Exploiting odds</a>
</li>
</ul>
</li>
</ul>
<ul class='section' id='section_3'>
<li><span id='section_title_3' class='section_title'><a href='http://themathsproject.co.uk' id='section_link_3'>Remembering everything.</a></span>
<ul>
<li id='exhibit_104' class='exhibit_title'><a href='../against-the-odds/black-swans'>black swans</a>
</li>
<li id='exhibit_72' class='exhibit_title'><a href='../against-the-odds/in-here-it-is-yesterday'>in here it is yesterday </a>
</li>
</ul>
</li>
</ul>
</div>
</div>

Try following and check if it works.
$(function() {
var pgurl = window.location.href.substr(window.location.href.lastIndexOf("/") + 1);
$("#index li a").each(function() {
var href = "";
if($(this).attr("href") != '')
href = $(this).attr("href").substr(($(this).attr("href").lastIndexOf("/")+1);
if (href == pgurl || href == '')
$(this).addClass("active");
})
});

Just traverse the whole links and when any link will clicked then change the font-weight:normal to all links and then apply the font-weight:bold to currently clicked link.
$().ready(function () {
$("ul>li").click(function () {
$("ul>li").css("font-weight", "normal");
$(this).css("font-weight", "bold");
});
});

togggle menu need to open on click and close itself when click the other menu

How can make it make
1- open toggle menu when on click menu (not opened by default)
2- close itself - if click other parent menu
trying to make it work for the project
and i copied from cssdesk
$('.inbox li').click(function(e) {
$('.inbox li.active').removeClass('active');
var $this = $(this);
if (!$this.hasClass('active')) {
$this.addClass('active');
}
e.preventDefault();
});
$(document).ready(function () {
$('.tree-toggler').click(function () {
$(this).parent().children('ul.tree').toggle(300);
});
});
<link class="cssdeck" rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.1/css/bootstrap-responsive.min.css" class="cssdeck">
<ul class="inbox-nav nav" style="border-top: 1px solid #eef1f5; margin-top:10px;" >
<li class="">
<a href="javascript:;" id="fldr3">menu 1
</li>
<li class="">
<a data-title="Inbox" data-type="important" href="javascript:;">2nd Menu</a>
</li>
<li class="">
<a data-title="Sent" data-type="sent" href="javascript:;">menu2</a>
</li>
<li class="divider"></li>
<li class="active tree-toggler">
Toggle menu</li>
<ul class="nav nav-list tree">
<li class="">Link</li>
<li class="">Link</li>
</ul>
</li>
</ul>
<script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.1/js/bootstrap.min.js"></script>

If user click is not neccesary you can do it by CSS, this is an example the 4th menu item has sub menu items
.menu,
.menu-item {
display: inline;
cursor: default;
}
.menu-item.has-subItem {
position: absolute;
}
.menu-item ul {
display: none;
position: absolute;
top: 15px;
left: 0;
padding: 0;
}
.menu-item:hover ul {
display: inline;
}
<ul class='menu'>
<li class='menu-item'>Item 1</li>
<li class='menu-item'>Item 2</li>
<li class='menu-item'>Item 3</li>
<li class='menu-item has-subItem'>Item 4
<ul>
<li class='sub-item'>sub 1</li>
<li class='sub-item'>sub 2</li>
<li class='sub-item'>sub 3</li>
</ul>
</li>
</ul>

In your $('.inbox li').click() function use jquery's .hide() function on the ul.tree element. Since .hide() won't do anything if the element is already hidden, you don't need to check if it needs to be hidden.
(Similarly, you can pull the $this.addClass('active'); statement out of the if, since it simply won't do anything if the class is already added!)

Children access for a multiple li in ul

I want to change the class of ul inside the ul.navigator trying to change it only on the one li I click. But this doesn't change anything, doesn't work. some help?
$('.navigator').children('li ul').each(function() {
if ($(this).hasClass('opened')) {
$(this).addClass('closed');
$(this).removeClass('opened');
} else {
$(this).addClass('opened');
$(this).removeClass('closed');
}
});
.opened {
color: green
}
.closed {
color: red
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="navigator">
<li class="elem1">
<span>Element 1</span>
<ul class="opened">
<li>Item 1</li>
<li>Item 2</li>
</ul>
</li>
<li class="elem2">
<span>Element 2 </span>
</li>
<li class="elem3">
<span>Element 3 </span>
</li>
</ul>

You need to use .find() instead of .children()
The .find() and .children() methods are similar, except that the latter only travels a single level down the DOM tree.
$('.navigator').find('li ul')
OR, Descendant selector
$('.navigator li ul')
$('.navigator').find('li ul').click(function() {
if ($(this).hasClass('opened')) {
$(this).addClass('closed');
$(this).removeClass('opened');
} else {
$(this).addClass('opened');
$(this).removeClass('closed');
}
});
.opened {
color: green
}
.closed {
color: red
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="navigator">
<li class="elem1">
<span>Element 1</span>
<ul class="opened">
<li>Item 1</li>
<li>Item 2</li>
</ul>
</li>
<li class="elem2">
<span>Element 2 </span>
</li>
<li class="elem3">
<span>Element 3 </span>
</li>
</ul>

Try it like this:
$('.navigator > li').on('click', function() {
$('.navigator').children('li ul').each(function() {
if ($(this).hasClass('opened')) {
$(this).addClass('closed');
$(this).removeClass('opened');
} else {
$(this).addClass('opened');
$(this).removeClass('closed');
}
});
});
This way, when an li directly under .navigator is clicked, your code will fire.

using toggle Function
$('.navigator li').click(function(){
$(this).children('ul').toggleClass('closed');
});
Live Demo Here
snippet
$('.navigator li').click(function(){
$(this).children('ul').toggleClass('closed');
});
.closed
{
display:none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="navigator">
<li class="elem1">
<span>Element 1</span>
<ul class="opened">
<li>Item 1</li>
<li>Item 2</li>
</ul>
</li>
<li class="elem2">
<span>Element 2 </span>
</li>
<li class="elem3">
<span>Element 3 </span>
</li>
</ul>

Better use with toggleClass
$('.navigator li ul').click(function(){
$(this).toggleClass('closed');
});
or
for your way to solve the problem like below:
use childern apply with same line $('.navigator li ul').
Apply removeclass before addClass.
And Don't forget to add jquery library
Snippet
$('.navigator li ul').click(function(){
if($(this).hasClass('opened')){
$(this).removeClass('opened');
$(this).addClass('closed');
} else {
$(this).addClass('opened');
$(this).removeClass('closed');
}
});
.opened{color:green}
.closed{color:red}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="navigator">
<li class="elem1">
<span>Element 1</span>
<ul class="opened">
<li>Item 1</li>
<li>Item 2</li>
</ul>
</li>
<li class="elem2">
<span>Element 2 </span>
</li>
<li class="elem3">
<span>Element 3 </span>
</li>
</ul>

Dynamic element doesn't respond on call

I have a menu and when I click a button to add a item to another item( to be a submenu) the item/parent doesn't respond to the jQuery code for the parent items.
$('.menu li.has-sub>a').on('click', function() {
alert("Working");
});
$(".test").click(function(event) {
event.preventDefault();
$(this).after("<ul></ul>");
$(this).parent().addClass("has-sub");
$(this).parent().find("ul").append("<li><a href='#'>SubItem</a></li>");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="menu">
<ul>
<li>Item
</li>
<li class="has-sub">Item
<ul>
<li>SubItem
</li>
</ul>
</li>
</ul>
</div>

Use
$("body").on('click',".test",function(event) {})

try:
$(".test").on('click',function(event) {})
$('.menu li.has-sub>a').on('click', function() {
alert("Working");
});
$(".test").on('click',function(event) {
event.preventDefault();
if($(this).parent().find("ul").length == 0) {
$(this).after("<ul></ul>");
$(this).parent().addClass("has-sub");
}
$(this).parent().find("ul").append("<li><a href='#'>SubItem</a></li>");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="menu">
<ul>
<li>Item
</li>
<li class="has-sub">Item
<ul>
<li>SubItem
</li>
</ul>
</li>
</ul>
</div>

Add active/selected state to link when click

I have a list of links i would like to add css class of "active" to, to show what is being displayed ie styled different
Fiddle:http://jsfiddle.net/zangief007/rj8g0yh4/7/
HTML:
<ul class="filter-desk" id="selectMe-desk">
<li class="category-1"><a class="active" href="#" data-page="category-1">Partners</a></li>
<li class="category-2"><a class="" href="#" data-page="category-2">Consultants</a></li>
<li class="category-3"><a class="" href="#" data-page="category-3">PA's</a></li>
</ul>
<ul class="category-1 group">
<li class="name">JOHN Smithe QC</li>
<li class="call">DDI <span>09 333 45335</span></li>
<li class="call">MOB <span>027 545 69873</span></li>
<li>david.heaney#heaneypartners.com</li>
</ul>
<ul class="category-3 group">
<li class="name">Barry White</li>
<li class="call">DDI <span>021 487 5896</span></li>
<li class="call">MOB <span>024 387 9854</span></li>
<li>susan.thodey#heaneypartners.com</li>
</ul>
<ul class="category-2 group">
<li class="name">Peter Pan</li>
<li class="call">DDI <span>231234</span></li>
<li class="call">MOB <span>234234</span></li>
<li>23423423423</li>
</ul>
JS:
$(function() {
var curPage = "";
$('.group').hide();
$('.category-1').show();
$("#selectMe-desk li a").click(function() {
var $a = $(this);
curPage = $a.data("page");
$(".group").hide().filter("."+curPage).show();
});
});
CSS
.active{
color:red;}

You have it almost working just add the lines in below see the fiddle
http://jsfiddle.net/rj8g0yh4/9/
$(function() {
var curPage = "";
$('.group').hide();
$('.category-1').show();
$("#selectMe-desk li a").click(function(e) {
var $a = $(this);
// hide currently active
$(".filter-desk .active").removeClass("active");
// make this one active
$a.addClass("active");
curPage = $a.data("page");
$(".group").hide().filter("."+curPage).show();
});
});