Develop Reference

How to query for the content inside a h3 tag

I am using the following jQuery code to try to get the text inside the element and add it to my variable:
<script>
var title = $('h3').html();
alert(title);
</script>
However, my browser is alerting me 'undefined' instead of the value inside the tag. Any idea what I am doing wrong?
Here is the html section for reference:
<article>
<div class="row">
<div class="columns large-6 large-centered medium-8 medium-centered small-12">
<h3>This is the post title</h3>
<h4>written by <b>Myself</b></h4>
<section>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla lacinia urna sit amet convallis dictum. Curabitur non sodales orci. Praesent vel gravida felis. Cras ultricies velit mi, eget efficitur ipsum tempus nec.</p>
</section>
</div>
</div>
</article>
Thanks,

This is the solution using plain JavaScript; you don't actually need jQuery here.
var h3element = document.getElementsByTagName("h3")[0];
This returns an array of all h3 elements in the document, of which you'll take the 0th index. Then, simply access the innerHTML property:
var h3content = h3element.innerHTML;
A complete solution would look something like:
<script>
var title = document.getElementsByTagName("h3")[0].innerHTML;
alert(title);
</script>

Try to wait for your document to trigger the ready event, if your code is beyond your tag, for example in the header. And if you only need the text, use the text function in jQuery.
<script>
$(function() {
var title = $('h3').text();
alert(title);
});
</script>

Do something like:
alert(document.getElementsByTagName('h3')[0].innerHTML)

jQuery popup box only show once in foreach loop

First, let me explain the purpose of the popup. I have a list from a database of products, in a foreach loop.
Now I added code so that when you click the product, it opens a new box and shows content about this product. But for some reason, it only works on the first product.
I will post the code here, since I am very bad at jQuery/Javascript.
Here is the jquery script:
;(function($) {
// DOM Ready
$(function() {
// Binding a click event
// From jQuery v.1.7.0 use .on() instead of .bind()
$('#wiki-button').on('click', function(e) {
// Prevents the default action to be triggered.
e.preventDefault();
// Triggering bPopup when click event is fired
$('#wiki-content').bPopup();
});
});
})(jQuery);
A snippet from the loop:
foreach ($getTheOffers as $getTheOffer ) { ?>
<div id="wiki-content">
<div class="box9">
<h1>Sample Box</h1>
<img src="imageurl">
<p> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam luctus consectetur dolor a porttitor. Curabitur id sem sed ante fringilla pulvinar et id lectus. Nullam justo ipsum, hendrerit ut commodo nec, pellentesque nec erat. Pellentesque pharetra.</p><br/>
</div>
</div>
<?php } ?>
If you need to see more code, I will post it in pastebin.

Use class instead of id
So, in your HTML
<div class="wiki-content">
And in your jQuery
$('.wiki-button').on('click', function(e) {
// Prevents the default action to be triggered.
e.preventDefault();
// Triggering bPopup when click event is fired
$(this).bPopup();
}

Change id to class. Id should be unique otherwise only the first element will be select
;(function($) {
// DOM Ready
$(function() {
// Binding a click event
// From jQuery v.1.7.0 use .on() instead of .bind()
$('.wiki-button').on('click', function(e) {
//___^_____________
// Prevents the default action to be triggered.
e.preventDefault();
// Triggering bPopup when click event is fired
$('.wiki-content').bPopup();
// ___^___________
});
});
})(jQuery);
foreach ($getTheOffers as $getTheOffer ) { ?>
<div class="wiki-content">
<!-- _____^____________________-->
<div class="box9">
<h1>Sample Box</h1>
<img src="imageurl">
<p> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam luctus consectetur dolor a porttitor. Curabitur id sem sed ante fringilla pulvinar et id lectus. Nullam justo ipsum, hendrerit ut commodo nec, pellentesque nec erat. Pellentesque pharetra.</p><br/>
</div>
</div>
<?php } ?>

Problem:
You have repeating ID's. The ID selector only expects one result, and gives you one, the first element. Hence, only the first is working.
Solution:
Use classes! Give a common class to your repeating elements and target that.

jQuery, foreach loop gives me same output on both values

Ok, now i have a new problem with this jQuery script.
In my foreach loop, i fetch out the product name and so on.
The thing is, i have 2 different products with 2 different descriptions.
But this code:
<div class="wiki-content">
<div class="box9">
<h1>Sample Box</h1>
<img src="http://www.wpthemegenerator.com/wp-content/uploads/2012/06/Image.jpg">
<?php
echo $getTheOffer['wiki_text'];
?>
<p> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam luctus consectetur dolor a porttitor. Curabitur id sem sed ante fringilla pulvinar et id lectus. Nullam justo ipsum, hendrerit ut commodo nec, pellentesque nec erat. Pellentesque pharetra.</p><br/>
</div>
</div>
and this jQuery:
;(function($) {
// DOM Ready
$(function() {
// Binding a click event
// From jQuery v.1.7.0 use .on() instead of .bind()
$('.wiki-button').bind('click', function(e) {
// Prevents the default action to be triggered.
e.preventDefault();
// Triggering bPopup when click event is fired
$('.wiki-content').bPopup();
});
});
})(jQuery);
Gives me same output on both. I gonna mention that it is popup dialog windows, when i try put this on a other row. Not inside this popup it works just fine.
Thanks for any help! :)
EDIT,
I change the popup windows from class to id and now it shows the 2 different texts. But not right. product nr 2 shows product nr 1s text. and product nr 2 shows product nr 1s text.

You have to specify which .wiki-content you want to display depending on the button that you click. If the buttons and the contents are in table rows, you could do something like this
$('.wiki-button').bind('click', function(e){
var $tr = $(e.currentTarget).closest('tr'),
$content = $tr.find('.wiki-content');
$content.bPopup();
});
This will find the content that lives in the same row.

Highlight a word's parent using jQuery?

Let's say for example that I have a webpage.
<ul>
<li>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</li>
<li>Aliquam tincidunt mauris eu risus.</li>
<li>Vestibulum auctor dapibus neque.</li>
</ul>
I want to find all instances of the word 'Lorem' and manipulate them in two ways:
Wrap it with <mark> HTML5 element
Run .addClass('look-at-me'); on its parent element.
So the resulting HTML would be
<ul>
<li class="look-at-me"><mark>Lorem</mark> ipsum dolor sit amet, consectetuer adipiscing elit.</li>
<li>Aliquam tincidunt mauris eu risus.</li>
<li>Vestibulum auctor dapibus neque.</li>
</ul>
I've read all the comments on Highlight a word with jQuery and I've been playing around with the JS code from highlight: JavaScript text higlighting jQuery plugin but both of these deal with ONLY highlighting the word in context. I manipulated the code to wrap the word using <mark> but I'm not skilled enough with JS to achieve my #2 goal of highlighting the parent container. I'm eager to see your helpful suggestions. Thanks!
EDIT: SOLVED! http://jsfiddle.net/GB8zP/1/

$('li').each(function () {
$(this).html($(this).html().replace(/Lorem/ig, "<mark>$&</mark>"));
if ($(this).text().toLowerCase().indexOf('lorem') >= 0) $(this).addClass('look-at-me');
});
jsFiddle example

try this
$("ul li:contains('Lorem')").each(function() {
$(this).html($(this).html().replace("Lorem","<mark>Lorem</mark>"));
$(this).parent().addClass("look-at-me");
})

Here's what I came up with: http://jsfiddle.net/c24w/cZegf/
HTML
<ul id="test">
<li>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</li>
<li>Aliquam lorem tincidunt mauris eu Lorem risus.</li>
<li>Vestibulum auctor dapibus neque.</li>
</ul>
JS
$('li', '#test').each(function highlightElement(i, e) {
e = $(e);
e.html(e.html().replace(/lorem/gi, function handleMatch(match) {
if (!e.hasClass('look-at-me')) e.addClass('look-at-me');
return '<match>' + match + '</match>';
}));
});
CSS
.look-at-me {
background: #f00;
}
match {
background: #ff0;
}
Info
Regular expression:
/lorem/gi
↑↑
||_ case-insensitive
|_ matches multiple (global)
Match function:
handleMatch(match) - each successful regular expression match is passed to this function, where the matched text is surrounded with <match></match>. This implementation makes it easier to change the exact pattern you want to highlight, because only the regular expression requires updating. Also, the parent element of the match is highlighted accordingly, if required.

jQuery UI accordion that keeps multiple sections open?

I may be an idiot, but how do you keep multiple sections in jQuery UI's accordion open? The demos all have only one open at a time... I'm looking for a collapseable menu type system.

Pretty simple:
<script type="text/javascript">
(function($) {
$(function() {
$("#accordion > div").accordion({ header: "h3", collapsible: true });
})
})(jQuery);
</script>
<div id="accordion">
<div>
<h3>First</h3>
<div>Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet.</div>
</div>
<div>
<h3>Second</h3>
<div>Phasellus mattis tincidunt nibh.</div>
</div>
<div>
<h3>Third</h3>
<div>Nam dui erat, auctor a, dignissim quis.</div>
</div>
</div>

This was originally discussed in the jQuery UI documentation for Accordion:
NOTE: If you want multiple sections
open at once, don't use an accordion
An accordion doesn't allow more than
one content panel to be open at the
same time, and it takes a lot of
effort to do that. If you are looking
for a widget that allows more than one
content panel to be open, don't use
this. Usually it can be written with a
few lines of jQuery instead, something
like this:
jQuery(document).ready(function(){
$('.accordion .head').click(function() {
$(this).next().toggle();
return false;
}).next().hide();
});
Or animated:
jQuery(document).ready(function(){
$('.accordion .head').click(function() {
$(this).next().toggle('slow');
return false;
}).next().hide();
});
"I may be an idiot" - You're not an idiot if you don't read the documentation, but if you're having problems, it usually speeds up finding a solution.

Posted this in a similar thread, but thought it might be relevant here as well.
Achieving this with a single instance of jQuery-UI Accordion
As others have noted, the Accordion widget does not have an API option to do this directly. However, if for some reason you must use the widget (e.g. you're maintaining an existing system), it is possible to achieve this by using the beforeActivate event handler option to subvert and emulate the default behavior of the widget.
For example:
$('#accordion').accordion({
collapsible:true,
beforeActivate: function(event, ui) {
// The accordion believes a panel is being opened
if (ui.newHeader[0]) {
var currHeader = ui.newHeader;
var currContent = currHeader.next('.ui-accordion-content');
// The accordion believes a panel is being closed
} else {
var currHeader = ui.oldHeader;
var currContent = currHeader.next('.ui-accordion-content');
}
// Since we've changed the default behavior, this detects the actual status
var isPanelSelected = currHeader.attr('aria-selected') == 'true';
// Toggle the panel's header
currHeader.toggleClass('ui-corner-all',isPanelSelected).toggleClass('accordion-header-active ui-state-active ui-corner-top',!isPanelSelected).attr('aria-selected',((!isPanelSelected).toString()));
// Toggle the panel's icon
currHeader.children('.ui-icon').toggleClass('ui-icon-triangle-1-e',isPanelSelected).toggleClass('ui-icon-triangle-1-s',!isPanelSelected);
// Toggle the panel's content
currContent.toggleClass('accordion-content-active',!isPanelSelected)
if (isPanelSelected) { currContent.slideUp(); } else { currContent.slideDown(); }
return false; // Cancels the default action
}
});
See a jsFiddle demo

Or even simpler?
<div class="accordion">
<h3>First</h3>
<div>Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet.</div>
</div>
<div class="accordion">
<h3>Second</h3>
<div>Phasellus mattis tincidunt nibh.</div>
</div>
<div class="accordion">
<h3>Third</h3>
<div>Nam dui erat, auctor a, dignissim quis.</div>
</div>
<script type="text/javascript">
$(".accordion").accordion({ collapsible: true, active: false });
</script>

I have done a jQuery plugin that has the same look of jQuery UI Accordion and can keep all tabs\sections open
you can find it here
http://anasnakawa.wordpress.com/2011/01/25/jquery-ui-multi-open-accordion/
works with the same markup
<div id="multiOpenAccordion">
<h3>tab 1</h3>
<div>Lorem ipsum dolor sit amet</div>
<h3>tab 2</h3>
<div>Lorem ipsum dolor sit amet</div>
</div>
Javascript code
$(function(){
$('#multiOpenAccordion').multiAccordion();
// you can use a number or an array with active option to specify which tabs to be opened by default:
$('#multiOpenAccordion').multiAccordion({ active: 1 });
// OR
$('#multiOpenAccordion').multiAccordion({ active: [1, 2, 3] });
$('#multiOpenAccordion').multiAccordion({ active: false }); // no opened tabs
});
UPDATE:
the plugin has been updated to support default active tabs option
UPDATE:
This plugin is now deprecated.

Simple: active the accordion to a class, and then create divs with this, like multiples instances of accordion.
Like this:
JS
$(function() {
$( ".accordion" ).accordion({
collapsible: true,
clearStyle: true,
active: false,
})
});
HTML
<div class="accordion">
<h3>Title</h3>
<p>lorem</p>
</div>
<div class="accordion">
<h3>Title</h3>
<p>lorem</p>
</div>
<div class="accordion">
<h3>Title</h3>
<p>lorem</p>
</div>
https://jsfiddle.net/sparhawk_odin/pm91whz3/

Actually was searching the internet for a solution to this for a while. And the accepted answer gives the good "by the book" answer. But I didn't want to accept that so I kept searching and found this:
http://jsbin.com/eqape/1601/edit - Live Example
This example pulls in the proper styles and adds the functionality requested at the same time, complete with space to write add your own functionality on each header click. Also allows multiple divs to be in between the "h3"s.
$("#notaccordion").addClass("ui-accordion ui-accordion-icons ui-widget ui-helper-reset")
.find("h3")
.addClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-top ui-corner-bottom")
.hover(function() { $(this).toggleClass("ui-state-hover"); })
.prepend('<span class="ui-icon ui-icon-triangle-1-e"></span>')
.click(function() {
$(this).find("> .ui-icon").toggleClass("ui-icon-triangle-1-e ui-icon-triangle-1-s").end()
.next().toggleClass("ui-accordion-content-active").slideToggle();
return false;
})
.next()
.addClass("ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom")
.hide();
HTML code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Toggle Panels (not accordion) using ui-accordion styles</title>
<!-- jQuery UI | http://jquery.com/ http://jqueryui.com/ http://jqueryui.com/docs/Theming -->
<style type="text/css">body{font:62.5% Verdana,Arial,sans-serif}</style>
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/base/jquery-ui.css" rel="stylesheet" type="text/css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js"></script>
</head>
<body>
<h1>Toggle Panels</h1>
<div id="notaccordion">
<h3>Section 1</h3>
<div class="content">
Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer
ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit
amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut
odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.
</div>
<h3>Section 2</h3>
<div>
Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet
purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor
velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In
suscipit faucibus urna.
</div>
<h3>Section 3</h3>
<div class="top">
Top top top top
</div>
<div class="content">
Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis.
Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero
ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis
lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui.
<ul>
<li>List item one</li>
<li>List item two</li>
<li>List item three</li>
</ul>
</div>
<div class="bottom">
Bottom bottom bottom bottom
</div>
<h3>Section 4</h3>
<div>
Cras dictum. Pellentesque habitant morbi tristique senectus et netus
et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in
faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia
mauris vel est.
Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus.
Class aptent taciti sociosqu ad litora torquent per conubia nostra, per
inceptos himenaeos.
</div>
</div>
</body>
</html>`

I found a tricky solution. Lets call the same function twice but with different id.
JQuery Code
$(function() {
$( "#accordion1" ).accordion({
collapsible: true, active: false, heightStyle: "content"
});
$( "#accordion2" ).accordion({
collapsible: true, active: false, heightStyle: "content"
});
});
HTML Code
<div id="accordion1">
<h3>Section 1</h3>
<div>Section one Text</div>
</div>
<div id="accordion2">
<h3>Section 2</h3>
<div>Section two Text</div>
</div>

Simple, create multiple accordian div each representating one anchor tag like:
<div>
<div class="accordion">
First heading
</div>
<div class="accordion">
First heading
</div>
</div>
It adds up some markup. But works like a pro...

Just call each section of the accordion as its own accordion. active: n will be 0 for the first one( so it will display) and 1, 2, 3, 4, etc for the rest. Since each one is it's own accordion, they will all have only 1 section, and the rest will be collapsed to start.
$('.accordian').each(function(n, el) {
$(el).accordion({
heightStyle: 'content',
collapsible: true,
active: n
});
});

Even simpler, have it labeled in each li tag's class attribute and have jquery to loop through each li to initialize the accordion.

Without jQuery-UI accordion, one can simply do this:
<div class="section">
<div class="section-title">
Section 1
</div>
<div class="section-content">
Section 1 Content: Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet.
</div>
</div>
<div class="section">
<div class="section-title">
Section 2
</div>
<div class="section-content">
Section 2 Content: Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet.
</div>
</div>
And js
$( ".section-title" ).click(function() {
$(this).parent().find( ".section-content" ).slideToggle();
});
https://jsfiddle.net/gayan_dasanayake/6ogxL7nm/

open jquery-ui-*.js
find $.widget( "ui.accordion", {
find _eventHandler: function( event ) { inside
change
var options = this.options, active = this.active, clicked = $( event.currentTarget ), clickedIsActive = clicked[ 0 ] === active[ 0 ], collapsing = clickedIsActive && options.collapsible, toShow = collapsing ? $() : clicked.next(), toHide = active.next(), eventData = {
oldHeader: active,
oldPanel: toHide,
newHeader: collapsing ? $() : clicked,
newPanel: toShow };
to
var options = this.options,
clicked = $( event.currentTarget),
clickedIsActive = clicked.next().attr('aria-expanded') == 'true',
collapsing = clickedIsActive && options.collapsible;
if (clickedIsActive == true) {
var toShow = $();
var toHide = clicked.next();
} else {
var toShow = clicked.next();
var toHide = $();
}
eventData = {
oldHeader: $(),
oldPanel: toHide,
newHeader: clicked,
newPanel: toShow
};
before active.removeClass( "ui-accordion-header-active ui-state-active" );
add if (typeof(active) !== 'undefined') { and closing }
enjoy

I know this question specifically asks for jQuery UI.
I always find myself exploring jQuery UI Accordion and then remembering that I can just use the native DETAILS and SUMMARY elements (except for IE11) to implement essentially the same type of feature: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details
Just a reminder in case you forget as often as I do.