Develop Reference

Make parent link unclickable in submenu toggle

I am trying to make a sub-menu toggle on mobile but it keeps on redirecting to the parent menu link and adding event.preventDefault(); making entire sub-menu links unclickable. Any idea how to make only first .has-childern a link unclickable?
Markup
<div class="menu-container">
<ul class="nav-menu">
<li class="menu item"> Home </li>
<li class="menu-item has-childern"> About
<ul class="submenu">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
</ul>
</li>
<li class="menu-item has-childern"> Services
<ul class="submenu">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
</ul>
</li>
<li class="menu item"> Contact </li>
</ul>
</div>
jQuery
jQuery(document).ready(function(){
jQuery('.menu-container .submenu').hide();
jQuery('.menu-container .has-childern a').click(function() {
event.preventDefault();
jQuery(this).parent().children('.submenu').toggle();
});
});
JsFiddle https://jsfiddle.net/p5fLsvcq/

You code affect all nested children instead just direct child
use '>' for select just a direct first level child in selector:
jQuery('.menu-container .has-childern > a').click(/*...*/)

JQUERY - toggle divs based on ID

I have a large number of DIVs on a page. Each being a container for an Unordered List. Above each DIV is a header text which consists of an element with an anchor.
e.g.
<h2><a id="header1" href="#" > Header 1 </a></h3>
<div id="container1">
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
</div>
<h2><a id="header2" href="#" > Header 2 </a></h3>
<div <div id="container2">>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
</div>
I need to have all these DIVs hidden until the header (anchor) is clicked. If the user clicks header it should toggle show/hide DIV
How can I accomplish this in JQUERY in a way that I can have one onClick function for all the DIVS, possibly using an id to differentiate between divs?
<h2> Header 1 </h3>
function toggleDiv(id) {
}
but in JQUERY ?
SOLVED!!!!
<script>
$(function(){
$('.toggle-link').on('click', function() {
var linkId = $(this).attr('data-div-id');
$('#' + linkId).toggle();
});
});
</script>
<h2> Header 1 </h2>
<div id="div1">
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
</div>
<h2> Header 2 </h2>
<div id="div2">
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
</div>

You can use .toggle() in jQuery
toggle() method toggles between hide() and show() for the selected
elements.
function toggleDiv(id) {
$('#'+id).toggle();
}
where id is the parameter you pass

Select list item parent without children in nested lists in jQuery

I have this nested list:
<ul>
<li>Item 1
<ul>
<li>Item 1A</li>
<li>Item 1B</li>
<li>Item 1C</li>
</ul>
</li>
<li>Item 2
<ul>
<li>Item 2A</li>
<li class="active">Item 2B</li>
<li>Item 2C</li>
</ul>
</li>
<li>Item 3
<ul>
<li>Item 3A</li>
<li>Item 3B</li>
<li>Item 3C</li>
</ul>
</li>
</ul>
What I need is: When I hover on a list item with class="active", this specific item 'Item 2B' together with its parent 'Item 2' to be colored red. 'Item 2A' and 'Item 2C' should NOT be colored.
I tried closest():
$("li").on("mouseenter", function () {
if ($(this).hasClass("active")) {
$(this).css("color", "red");
$(this).closest("ul").closest("li").css("color", "red");
}
});
Also parent().parent():
$(this).parent().parent().css("color", "red");
but of course they both color the whole 'Item 2' list item including all children 2A, 2B and 2C

You have to wrap each of the parent element into some html element like div or span.
Solution
HTML
<ul>
<li>Item 1
<ul>
<li>Item 1A</li>
<li>Item 1B</li>
<li>Item 1C</li>
</ul>
</li>
<li><span>Item 2</span>
<ul>
<li>Item 2A</li>
<li class="active">Item 2B</li>
<li>Item 2C</li>
</ul>
</li>
<li>Item 3
<ul>
<li>Item 3A</li>
<li>Item 3B</li>
<li>Item 3C</li>
</ul>
</li>
</ul>
JS
$("li").on("mouseenter", function () {
if ($(this).hasClass("active")) {
$(this).css("color", "red");
$(this).parent().parent().find("span").css("color", "red");
}
});

For this to work you will need to wrap the Item 2 text in a containing element, such as a span, otherwise the colour of all child elements will be changed too.
Then you can use .parent.closest('li') to get the li, before using children() to retrieve that span. Try this:
$("ul").on("mouseenter mouseleave", 'li.active', function(e) {
var $target = $(this).parent().closest('li').children('span');
$target.add(this).toggleClass('hover', e.type == 'mouseenter');
});
.active {
font-weight: bold;
}
.hover {
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
<li>
<span>Item 1</span>
<ul>
<li>Item 1A</li>
<li>Item 1B</li>
<li>Item 1C</li>
</ul>
</li>
<li>
<span>Item 2</span>
<ul>
<li>Item 2A</li>
<li class="active">Item 2B</li>
<li>Item 2C</li>
</ul>
</li>
<li>
<span>Item 3</span>
<ul>
<li>Item 3A</li>
<li>Item 3B</li>
<li>Item 3C</li>
</ul>
</li>
</ul>
Note that the parent() call is required before calling closest() as closest() will match the current li element, which we do not want, so parent() is required to 'hop' over that element.

I'd probably do it by:
Using a standard :hover rule for the li itself
Using a class, not direct styling, for its parent li
Re-asserting the color for the subordinate ul elements (and thus their children) under the li with the class in the CSS
Like this:
$("li")
.on("mouseenter", function() {
if ($(this).hasClass("active")) {
$(this).parent().closest("li").addClass("has-active");
}
})
.on("mouseleave", function() {
if ($(this).hasClass("active")) {
$(this).parent().closest("li").removeClass("has-active");
}
});
li {
color: black;
}
li.has-active {
color: red;
}
li.active:hover {
color: red;
}
.has-active ul {
color: black;
}
<ul>
<li>Item 1
<ul>
<li>Item 1A</li>
<li>Item 1B</li>
<li>Item 1C</li>
</ul>
</li>
<li>Item 2
<ul>
<li>Item 2A</li>
<li class="active">Item 2B</li>
<li>Item 2C</li>
</ul>
</li>
<li>Item 3
<ul>
<li>Item 3A</li>
<li>Item 3B</li>
<li>Item 3C</li>
</ul>
</li>
</ul>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Hide an element that button is contained in using jQuery/Javascript

So I have some tiles that are arranged using a list of UL and then several LI tags.
I want to have a button inside one of the LI tags that will hide the whole tile when pressed.
Not sure how to go about it. Something like - this.('li').hide() but i know thats wrong lol.
Many thanks.
<ul class="sortable grid">
<li>Item 1</li><button onclick="hidePane()">Dismiss</button>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
<li>Item 5</li>
<li>Item 6</li>
</ul>
<script>
function hidePane(){
this.hide();
}
</script>
I want it to be dynamic. The intended use for this is to have a loop pulling in many tiles. So id like it to have a dismiss button on each and when clicked it will just hide tiles as you scroll.

Do not put elements outside li. In ul, first level elements inside should always be just li, so then inside the li you can put your button:
$('.sortable button').on('click', function() {
$(this).parent('li').hide();
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="sortable grid">
<li>Item 1<button>Dismiss</button></li>
<li>Item 2<button>Dismiss</button></li>
<li>Item 3<button>Dismiss</button></li>
</ul>
A solution based on your code, using only JavaScript would imply to use event.target to get the current clicked button and its parent using parentElement and you would also use style.display = none; because there is no hide() method in pure JavaScript:
function hidePane(event) {
event.target.parentElement.style.display = 'none';
}
<ul class="sortable grid">
<li>Item 1<button onclick="hidePane(event)">Dismiss</button></li>
<li>Item 2<button onclick="hidePane(event)">Dismiss</button></li>
<li>Item 3<button onclick="hidePane(event)">Dismiss</button></li>
<li>Item 4<button onclick="hidePane(event)">Dismiss</button></li>
<li>Item 5<button onclick="hidePane(event)">Dismiss</button></li>
<li>Item 6<button onclick="hidePane(event)">Dismiss</button></li>
</ul>

You can try this:
Html code:
<ul class="sortable grid">
<li>Item 1 <br /><input type="submit" onclick="hidePane(this);"></li>
<li>Item 2 <br /><input type="submit" onclick="hidePane(this);"></li>
<li>Item 3 <br /><input type="submit" onclick="hidePane(this);"></li>
<li>Item 4 <br /><input type="submit" onclick="hidePane(this);"></li>
<li>Item 5 <br /><input type="submit" onclick="hidePane(this);"></li>
<li>Item 6 <br /><input type="submit" onclick="hidePane(this);"></li>
</ul>
JS code:
function hidePane(ref) {
$(ref).parent().hide()
}

It would be better if you do it by JQuery
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<ul class="sortable grid">
<li>Item 1<button class="dismiss"> Dismiss</button></li>
<li>Item 2<button class="dismiss"> Dismiss</button></li>
<li>Item 3<button class="dismiss"> Dismiss</button></li>
<li>Item 4<button class="dismiss"> Dismiss</button></li>
<li>Item 5<button class="dismiss"> Dismiss</button></li>
<li>Item 6<button class="dismiss"> Dismiss</button></li>
</ul>
Here is your JS
$(".dismiss").click(function () {
$(this).parent().hide();
});
I would recommend you to not to use html onclick() since it was considered a bad practice
[Why is using onClick() in HTML a bad practice?

You have to use jQuery: select the item by the id and then use the hide method.
$('#id_of_li').hide();

Try this code. It allows you to hide the li containing the button.
$("#hide").on('click',function(){
hidePane($(this).parent());
});
function hidePane(parent){
parent.hide();
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="sortable grid">
<li>Item 1 <button id="hide">Dismiss</button></li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
<li>Item 5</li>
<li>Item 6</li>
</ul>

Getting the element at the same level of parent

I want to add a class to the preceding h3 element whenever any of the li under it being clicked, here is my html:
<div class="list">
<div class="marketing">
<h3> List I</h3>
<div>
<ul>
<li>item 1</li>
<li>item 2</li>
<li>item 3</li>
</ul>
</div>
</div>
<div class="operations">
<h3> List II</h3>
<div>
<ul>
<li>item a</li>
<li>item b</li>
<li>item c</li>
</ul>
</div>
</div>
</div>
I tried to use the following script but in vain.
$('.list li').click(function () {
$(this)parent().prev('h3').addClass('active');
);
or either
$('.list li').click(function () {
$(this).parent().parent().children('h3')addClass('active');
);
Any idea?

use:
$(this).closest('div').prev('h3').addClass('active');
or
$(this).closest('div').siblings('h3').addClass('active');

Use this
$('.list li').click(function () {
$(this).parent().parent().prev().addClass('active');
});
DEMO