Develop Reference

How to know which element is clicked and toggle class to it? JS Jquery

I have 4 divs like this, with class work:
<div class="work">
<img src="panda.jpg">
<h3>Panda</h3>
<p>Panda eats apple.</p>
</div>
And I want to toggle clicked class to clicked div:
.clicked {
font-size: 25px;
}
How to do it?

$('.work').on('click', function() {
$(this).toggleClass('clicked');
})
Geez, why couldn't you just go check the documentation!

There is a function in jquery named toggleClass.
You should attach a click event to your div and then use this to reference to the clicked element.
$('.work').click(function() { // edited: from $(.work) to $('.work')
$(this).toggleClass("click")
})

Here you go with a solution https://jsfiddle.net/7ep3e4gn/
$('div.work').click(function(){
$(this).addClass('clicked').siblings('div.work').removeClass('clicked');
});
.clicked {
font-size: 25px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="work">
<img src="panda.jpg">
<h3>Panda</h3>
<p>Panda eats apple.</p>
</div>
<div class="work">
<img src="panda.jpg">
<h3>Panda2</h3>
<p>Panda2 eats apple.</p>
</div>
<div class="work">
<img src="panda.jpg">
<h3>Panda3</h3>
<p>Panda3 eats apple.</p>
</div>
I've used addClass & removeClass along with jQuery siblings method.
Hope this will help you.

Jquery has a method just for that.
$('.work').click(function(e) {
$(e.target).closest('.work').toggleClass('clicked');
});
The .closest() is in case the click was registered on the contained image, etc.

If you want only one of the div's with the class .work to have the .clicked class at a time, here's what you do:
$('.work').on('click', function() { //When the div 'work' is clicked
$('.work').removeClass('clicked'); //Remove the class 'clicked' from all divs named 'work'
$(this).addClass('clicked'); //Add the class 'clicked' to the div that was clicked.
});
Here's a fiddle for the same.

JQuery Remove all links inside a <div> that have a particular class except for the one that's clicked

In jQuery, how can I remove/disable or change the class of all links inside a <div> that have a particular class except for the one that was clicked? The clicked one's class needs to be changed.
<div class="test">
<div class="link" data-id="1">Link 1</div>
<div class="link" data-id="2">Link 2</div>
<div class="link" data-id="3">Link 3</div>
</div>
In this case, if I clicked Link 1, I'm trying to make Link 2 and Link 3 disappear or change their class, and change the class of Link 1 to noLink.
How can this be done. I'm familiar with add class, remove class, but I'm stuck with getting all others to be removed or changed and change the clicked one to another class.

Something like this?
$('.test div').on('click', function () {
$(this).removeClass('link')
.addClass('noLink')
.siblings('.link')
.remove();
});
DEMO

If you want to change color of clicked link then you can use following code
$('.test .link').on('click',function(){
$('.test .link').css('background', '#38a2de');
$(this).css('background', '#333333');
});
demo

$('.link').on('click', function() {
$('.link').addClass('hide');
$(this).attr('class', 'no-link');
});
Fiddle: http://jsfiddle.net/R3586/

$('.test .link').click(function() {
$(this).removeClass('link').addClass('noLink');
$('.link').remove();
})

This does the trick:
<script>
$('.test .link').click(function(){
$('.test .link').hide();
$(this).addClass('noLink').show();
});
</script>

$('.link').click(function(){
$(this).addClass('noLink').removeClass('link').siblings().hide();
});

$('.link').click(function(){
$(this).removeClass('link').addClass('nolink');
$('.link').remove()
});

How to show the child div on mouse hover of parent div

I have a number of parent divs (.parent_div), which each contain a child div (.hotqcontent) where I output data from my database using a loop.
The following is my current markup:
<div class="content">
<div class="parent_div">
<div class="hotqcontent">
content of first div goes here...
</div>
<hr>
</div>
<div class="parent_div">
<div class="hotqcontent">
content of second div goes here...
</div>
<hr>
</div>
<div class="parent_div">
<div class="hotqcontent">
content of third div goes here...
</div>
<hr>
</div>
<div class="parent_div">
<div class="hotqcontent">
content of fourth div goes here...
</div>
<hr>
</div>
</div>
What I would like to achieve is when a user hovers / mouseovers a parent div, the contents of the child div contained within should be revealed.
To achieve this I wrote the following jQuery script but it doesn't appear to be working. It's not even showing the alert!
<script>
$(document).ready(function() {
$(function() {
$('.parent_div').hover(function() {
alert("hello");
$('.hotqcontent').toggle();
});
});
});
</script>
How can I modify or replace my existing code to achieve the desired output?

If you want pure CSS than you can do it like this....
In the CSS below, on initialization/page load, I am hiding child element using display: none; and then on hover of the parent element, say having a class parent_div, I use display: block; to unhide the element.
.hotqcontent {
display: none;
/* I assume you'll need display: none; on initialization */
}
.parent_div:hover .hotqcontent {
/* This selector will apply styles to hotqcontent when parent_div will be hovered */
display: block;
/* Other styles goes here */
}
Demo

Try this
$(document).ready(function() {
$('.parent_div').hover(function() {
alert("hello");
$(this).find('.hotqcontent').toggle();
});
});
Or
$(function() {
$('.parent_div').hover(function() {
alert("hello");
$(this).find('.hotqcontent').toggle();
});
});

You can use css for this,
.parent_div:hover .hotqcontent {display:block;}

This can be done with pure css (I've added a couple of bits in just to make it a bit neater for the JSFIDDLE):
.parent_div {
height: 50px;
background-color:#ff0000;
margin-top: 10px;
}
.parent_div .hotqcontent {
display: none;
}
.parent_div:hover .hotqcontent {
display:block;
}
This will ensure that your site still functions in the same way if users have Javascript disabled.
Demonstration:
http://jsfiddle.net/jezzipin/LDchj/

With .hotqcontent you are selecting every element with this class. But you want to select only the .hotqcontent element underneath the parent.
$('.hotqcontent', this).toggle();

$(document).ready(function(){
$('.parent_div').on('mouseover',function(){
$(this).children('.hotqcontent').show();
}).on('mouseout',function(){
$(this).children('.hotqcontent').hide();
});;
});
JSFIDDLE

you don't need document.ready function inside document.ready..
try this
$(function() { //<--this is shorthand for document.ready
$('.parent_div').hover(function() {
alert("hello");
$(this).find('.hotqcontent').toggle();
//or
$(this).children().toggle();
});
});
and yes your code will toggle all div with class hotqcontent..(which i think you don't need this) anyways if you want to toggle that particular div then use this reference to toggle that particular div
updated
you can use on delegated event for dynamically generated elements
$(function() { //<--this is shorthand for document.ready
$('.content').on('mouseenter','.parent_div',function() {
alert("hello");
$(this).find('.hotqcontent').toggle();
//or
$(this).children().toggle();
});
});

you can try this:
jQuery(document).ready(function() {
jQuery("div.hotqcontent").css('display','none');
jQuery("div.parent_div").each(function(){
jQuery(this).hover(function(){
jQuery(this).children("div.hotqcontent").show(200);
}, function(){
jQuery(this).children("div.hotqcontent").hide(200);
});
});
});

How do I make this code work for each click?

I have h3 block's and on click of each of the block I am showing the section associated with it. It is actually something like accordion(hide and collapse). I have also given a drop icon to the h3 tags, means that when the block is opened the h3 should have a dropicon pointing downwards while others h3 should have there dropocons towards right. I am controlling this behaviour using backgroundPosition. I am using the jQuery visible condition to see if the particular block is visible then give its drop icon one background position and to the rest other. It works fine but only for first click. It doesn't work for second click; can somebody explain why? Here is my code:
if($(this).next().is(':visible')) {
$(this).css({'backgroundPosition':'0px 14px'});
}
else {
$("h3").css({'backgroundPosition':'0px -11px'});
}
UPDATED CODE:
$("h3").click(function() {
$(".tabs").hide();
$(this).next().show();
if($(this).next().is(':visible')) {
$(this).css({'backgroundPosition':'0px 14px'});
} else {
$("h3").css({'backgroundPosition':'0px -11px'});
}
})

If you wrap the whole block in a div it might make traversing easier.
Html:
<div class="drop-block">
<h3>Click this</h3>
<ul>
<li>Drop</li>
<li>it</li>
<li>like</li>
<li>it's</li>
<li>hot</li>
</ul>
</div>​
Jquery:
var dropper = $('.drop-block');
$(dropper).find('h3').click(function(){
$(this).toggleClass('active');
$(dropper).find('ul').toggle();
});​
Example

I Belive that you are looking for live
So it will be something like this:
$(element).live('click', function(){
if($(this).next().is(':visible')) {
$(this).css({'backgroundPosition':'0px 14px'});
}
else {
$("h3").css({'backgroundPosition':'0px -11px'});
}
}

Instead of editing the css of them, make a css class "open" (or similar), and then add / remove the class on the click to open / close.
It is much easier to debug by checking for the existence of a class than it is to check the css properties of something in JS.

Better make a class name for each situation and easly handle the action
$('h3').on('click', function(){
if($(this).hasClass('opened')) {
$(this).removeClass('opened');
}
else {
$(this).addClass('opened');
}
}

$(document).on('click', 'h3', function(e) {
$(".tabs").hide('slow');
$(this).css({'backgroundPosition':'0px 14px'});
if(!$(this).next().is(':visible'))
{
$("h3").css({'backgroundPosition':'0px -11px'});
$(this).next().show('slow');
}
});
You can remove 'slow' from show/hide if animation is not required
Here is an example.

It sounds like you need to bind click events to the h3 elements and toggle the visibility of the child elements:
$(function(){
$("h3").click(function(){
$(this).next(".tabs").toggle();
});
});
Example markup:
<h3>Item 1</h3>
<div class="tabs">
<h4>Option 1</h4>
<h4>Option 2</h4>
</div>
<h3>Item 2</h3>
<div class="tabs">
<h4>Option 1</h4>
<h4>Option 2</h4>
</div>
Here's a jsFiddle to demonstrate.

target mutiple classes above (this) in jQuery?

I've built a simple dropdown menu to replace some html select menus like so:
$('html, .currentPage').click(function() {
$('.currentMenu').slideUp('fast');
});
$('.currentPage').click(function(e){
if(!$(this).next().is(":visible")) {
$(this).next().stop().slideDown('fast');
}
e.stopPropagation();
});
$(".currentMenu li").click(function(e){
e.preventDefault();
$(".currentPage").html($(this).text());
});
However, if I were to have more than one menu, the final part:
$(".currentMenu li").click(function(e){
e.preventDefault();
$(".currentPage").html($(this).text());
});
will occur on both menus. How can I target the ".currentPage" class for that specific menu only?
HTML:
<div class="menuWrap font">
<div class="currentPage">Trebuchet MS</div>
<div class="currentMenu">
<ul>
<li>Arial</li>
<li>Helvetica</li>
<li>Droid Sans</li>
<li>Trebuchet MS</li>
<li>Georgia</li>
<li>Droid Serif</li>
</ul>
</div>
</div>
<div class="menuWrap fontSize">
<div class="currentPage">12pt</div>
<div class="currentMenu">
<ul>
<li>9pt</li>
<li>10pt</li>
<li>11pt</li>
<li>12pt</li>
<li>13pt</li>
</ul>
</div>
</div>

You have two options. The first is to traverse the DOM to find the nearest .currentPage element from .currentMenu li. Given your HTML structure, this should work:
$(".currentMenu li").click(function(e){
e.preventDefault();
$(this).closest(".currentMenu").prev().html($(this).text());
});
The second option is to put this code into a plugin which you apply to an element, so you always know the context in which to select elements in.

OK, based on your updated question. .currentMenu and .currentPage are siblings. So you can navigate to the parent element, then drill down to the currentPage. Here's a fiddle: http://jsfiddle.net/DuPuJ/