Develop Reference

Toggle visibility of three or more divs

I have a simple script that toggles the visability of two divs:
<script type='text/javascript'>
$(window).load(function(){
function toggle_contents() {
$('#page1').toggle();
$('#page2').toggle();
setTimeout(function(){
toggle_contents()
}, 25000)
}
toggle_contents();
});
</script>
<div id="container">
<div id="page1">This is page 1 contents.</div>
<div id="page2" style="display:none;">This is page 2 contents.</div>
</div>
It works great but I can not figure out how to add more divs to the mix.
http://jsfiddle.net/mxwv85px/1/
Any help is much appreciated...

To cycle through a set of divs you could use a class on the active div, and use next to move on each iteration. Something like this:
function toggle_contents() {
var $active = $('#container .active');
if ($active.length && $active.next().length) {
$active.hide().removeClass('active').next().show().addClass('active');
}
else {
$('.active').hide();
$('#container div:first').show().addClass('active');
}
setTimeout(toggle_contents, 3000)
}
toggle_contents();
Updated fiddle

.toggle() means the div's are toggled between hidden and displayed. I would suggest using .hide() and .show() instead, as this gives you more control about what content you want to display or not. However, the downside is you would need a code that has much more lines to it. Give me a second while I try to make such a thing for you.
Currently you can only have 2 divs, because the .toggle() function can only have 2 values, which means a third div will have the same value as another div, causing it to be either visible or hidden while another div is as well.
The code provided in this answer by #Rory McCrossan is already working, so I'll stop trying to program it myself:
https://stackoverflow.com/a/27447139/4274852

You could cycle through the selected elements and show only one each call
var page=0;
function toggle_contents() {
$('.page').hide();
var array = $('.page').toArray();
$(array[page]).show();
page=++page%array.length;
setTimeout(function(){toggle_contents()}, 3000)
}
toggle_contents();
http://jsfiddle.net/mxwv85px/9/

First of all, put timer out of toggle_contents function. Secondly, add to divs common class, cache them and operate with variable-cache
$(window).load(function(){
var divs = $('.some-class');
function toggle_contents() {
divs.toggle();
}
setTimeout(function(){
toggle_contents()
}, 25000)
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="some-class">
</div>
<div class="some-class">
</div>
<div class="some-class">
</div>

You can do this
http://jsfiddle.net/mxwv85px/13/
The code
<div id="container">
<div id="page1">This is page 1 contents.</div>
<div id="page2" style="display:none;">This is page 2 contents.</div>
<div id="page3" style="display:none;">This is page 3 contents.</div>
<div id="page4" style="display:none;">This is page 4 contents.</div>
<div id="page5" style="display:none;">This is page 5 contents.</div>
function toggle_contents() {
var items = $('#container div');
for(var i= 0; i < items.length; i++)
{
if($(items[i]).is(":visible")) {
$(items[i]).hide();
i + 1 == items.length ? $(items[0]).show() : $(items[i+1]).show();
break;
}
}
setTimeout(function(){ toggle_contents() }, 500)
}
toggle_contents();

To add more divs, you can use .append, for example:
$('#container').append('<div id="page3">This is page 3 contents</div>');

hide all but one element of certain class in Jquery

I am trying to create an effect whereby clicking on a title toggles the corresponding content div. Clicking on another title while some content is showing should hide that content div and show the content div corresponding to the title just clicked.
However the code is not doing anything, as you can see on the following jquery: http://jsfiddle.net/dPsrL/
Any ideas?
HTML:
<div class="row title">
<div class="title" industry_id="education">Ed</div>
<div class="title" industry_id="tech">Tech</div>
<div class="title" industry_id="finance">Fin</div>
</div>
<br>
<br>
<div class="row content">
<div class="content" id="education">Education is great</div>
<div class="content" id="tech">Technology is awesome</div>
<div class="content" id="finance">Finance is super</div>
</div>
JAVASCRIPT:
$(document).ready(function () {
$('.content').hide();
});
('.title').on('click', function () {
var clicked = $(this).attr('industry_id');
alert(clicked);
$("#"+clicked).toggle(400);
$("#"+clicked).siblings().hide();
});

Instead of toggling the clicked element first and then hiding the others, why don't you just hide everything first and then show the clicked one? Saves you a check, and all you have to do is switch the order
$('.title').on('click', function () {
var clicked = $(this).attr('industry_id');
alert(clicked);
$('.content').hide();
$('#' + clicked).show(400);
});

Your attribute doesn't have the id selector in it. You need to do a string concatenation :
$('.title').on('click', function () {
var clicked = $(this).attr('industry_id');
alert(clicked);
$('#' + clicked).toggle(400);
$('#' + clicked).siblings().hide();
//The two last lines could be :
//$('#' + clicked).toggle(400).siblings().hide();
});
Also you have to remove the class content and title on the row since it trigger the click event and the hide part.
Here's a working fiddle : http://jsfiddle.net/dPsrL/3/

Typo on ('.title'). Should be $('.title'). Also, you should probably not give the container divs the same class as the child divs and then use that same class in your CSS and jQuery. It just makes selection more difficult.
jsFiddle example

Replace the same class div and has no ID

I have four DIVS, one is ready and the other three are still hidden. When the link to the second div is pressed, I want the second div to show up, and so for the next link.
The problem is, all the four DIV doesn't have ID and has the same class.
I just want it to automatically run without knowing what is the ID and the class of the div, or anything inside the div. It may look like a slideshow but on click function.
<p> link to the ready div </P>
<p> link to the second div </P>
<p> link to the third div </P>
<p> link to the last div </P>
<div id="wrapper">
<div> this is the div that is ready. This div has no ID and has the same class with others <div>
<div> this is the second div that is hidden. This div has no ID and has the same class with others <div>
<div> this is the third div that is hidden. This div has no ID and has the same class with others <div>
<div> this is the last div that is hidden. This div has no ID and has the same class with others <div>
</div>
FIDDLE

i have made a fiddle that might suite your case please have a look. You can make some modifications according to your needs.
var currentDiv = 0;
$(document).ready(function(){
$(".container div").click(function(){
$(".container div").eq(currentDiv+1).css( "display", "block" );
currentDiv++;
})
});
JSFIddle Link

Im pretty sure this is what you are looking for.
jQuery
$(".options p").click(function () {
var ourPick = $("p").index(this) + 1;
$(".container div:nth-child(" + ourPick + ")").show();
});
Demo Here
So what we are doing is getting the index for the link pressed and then using that to select the div we want to show (this is using :nth-child()).
Note: I have put a container around the links so you it doesn't pick up every p on the page.
If you want only one at a time you can just set them all to hide before showing one.
jQuery:
$(".options p").click(function () {
var ourPick = $("p").index(this) + 1;
$(".container div").hide();
$(".container div:nth-child(" + ourPick + ")").show();
});
Demo Here

JS FIDDLE DEMO
Explanation
<div class="parentDiv">
<div class="div">1</div>
<div class="div">2</div>
<div class="div">3</div>
<div class="div">4</div>
</div>
<div class="buttons">
<a idx="1">1</a>
<a idx="2">2</a>
<a idx="3">3</a>
<a idx="4">4</a>
</div>
$('.buttons a').click(
function(event)
{
var idx = $(event.target).attr('idx');
$('.div').hide(); //Hides all the divs
$('.parentDiv div:nth-child('+idx+')').show(); // Shows required div
}
);
DISADVANTAGE
If you will insert more contents, there is more work. Else no problem..
If you insert a div , you have to change all the links.
<div class="parentDiv">
<div class="div">1</div>
<div class="div">2.0 Inserted Div</div>
<div class="div">2</div>
<div class="div">3</div>
<div class="div">4</div>
</div>
<div class="buttons">
<a idx="1">1</a>
<a idx="2">2.0</a>
<a idx="3">2</a>
<a idx="4">3</a>
<a idx="5">4</a>
</div>
Not here , All the idx has to be changed. Since my code uses nth-child property
Edited
Updated Fiddle
Another Update

Jquery - Adding event to specific div that shares class name with others

I'm looking to add a mouseup event to a series of divs, that when clicked, reveal a child div ('menu'). All the parent divs share the same class, for example:
<div class="container">
<div class="menu"><p>Text</p></div>
</div>
<div class="container">
<div class="menu"><p>Text</p></div>
</div>
etc...
However, I'd like the event to only trigger when I've clicked that particular 'container'. When I click on another 'container', I'd like the same thing to happen, however, I'd also like the previously opened 'menu' to hide. The only way I have managed to do this (being a JQuery noob), is to create variables for each container, as well as giving them unique classes. For example:
$(document).mouseup (function (e){
var buttonOne = $(".containerOne");
var buttonTwo = $(".containerTwo");
var menuOne = $(".containerOne").find(".menu");
var menuTwo = $(".containerTwo").find(".menu");
if(buttonOne.is(e.target)){
menuOne.toggle(100);
menuTwo.hide();
}
else if(buttonTwo.is(e.target)){
menuTwo.toggle(100);
menuOne.hide();
}
else {
$(".menu").hide();
}
});
Quick JSFiddle
This then creates lines and lines of code the more containers I add, and I feel there is almost certainly an easier way of doing this. Apologies if this was written poorly, it's been a long day, ha.

Add a new class to the containerxxx element then use a simple click handler
<div class="containerOne container">
<div class="menu">
<p>Text</p>
</div>
</div>
<div class="containerTwo container">
<div class="menu">
<p>Text</p>
</div>
</div>
then
var $menus = $('.container .menu');
$('.container').mouseup(function (e) {
var $menu = $(this).find('.menu').toggle();
$menus.not($menu).hide()
});
Demo: Fiddle

How about something like
$(".container").on("click", function() {
var mine = $(".menu", this).toggle(100);
$(".menu").not(mine).hide();
});

Traversing DOM from span in / out of divs

I'm adding a click event to a span that is within a div. The target of this event, which will become visible, is a first div that is within a div, two divs down. How can I traverse the DOM to find it?
Perhaps it'll be clearer with the code:
<div a>
<h2>
<span id="here">Click</span>
</h2>
</div>
<div></div>
<div>
<div class="targetDiv">This is the div we need to find</div>
<div class="targetDiv">There are other divs with the same id, but we don't need to find those</div>
<div class="targetDiv">Not looking for this one </div>
<div class="targetDiv">Or this one either</div>
</div>
I've searched left and right and cannot find an answer. It's important to restrict the event ONLY to the first div immediately after the span.
Any help would be much appreciated.

As shown, the code would look like this:
$('span#here').on('click', function() {
$(this).closest('div').siblings(':contains(.targetDiv)').children().eq(0).show();
}

Here's a sample of the fish we caught
$(function() {
$('#here').on('click', function() {
var div = $(this) //the element clicked
.closest('div') //find nearest parent div
.nextAll(':eq(1)') //find the second next div
.children(':eq(0)') //find the first child of it
.show(); //remove invisible cloak
});
});​

This works. I provided an example you can just save to a html file and test it yourself
<style>
.targetDiv{display:none;}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
$('#here').click(function(){
$('.targetDiv').first().show(); // or whatever you want
});
});
</script>
<div a>
<h2>
<span id="here">Click</span>
</h2>
</div>
<div></div>
<div>
<div class="targetDiv">This is the div we need to find</div>
<div class="targetDiv">There are other divs with the same id, but we don't need to find those</div>
<div class="targetDiv">Not looking for this one </div>
<div class="targetDiv">Or this one either</div>
</div>