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Run Javascript based on HTML class clicked

I have a tiny script I'm working on :)
The idea is if the span tag just contains autocompleteitem and not autocompleteitem autocompleteitemwithcontainer then it'll display the word hello. Right now it displays hello for both :(
Demo: https://jsfiddle.net/L33mqqtp/
$(document).ready(function() {
$(document).on('click','.autocompleteitem',function(){
$("div").show();
});
});
How do I update my code to do this?

Try this
'click','.autocompleteitem:not(.autocompleteitemwithcontainer)'

They both have .autocompleteitem class! To obtain what you want, use a different selector, which only applies to first one:
$(document).ready(function() {
$(document).on('click','.autocompleteitem:not(".autocompleteitemwithcontainer")',function(){
$("div").show();
});
});

try this
$(document).ready(function() {
$("span").on('click', function(){
if(this.className == "autocompleteitem")
$("div").show();
});
});

Use the attribute selector syntax. That will allow you to directly match an entire attribute. This way you don't have to make a bunch of different combinations for each thing that you don't want to be selected.
Example selector: jQuery('[class="autocompleteitem"]')
Working Example:
$(document).ready(function() {
$(document).on('click','[class="autocompleteitem"]',function(){
$("div.containertoshow").toggle();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Should work<br>
Should not work
<div class="containertoshow" style="display:none;">That button does toggle me on/off!</div>

Jquery show/hide hover or mouse enter issue

Ok so im trying to get some text that is hidden to display when the mouse enters the div then hide when it leaves
so far ive got this on my fiddle
$(document).ready(function() {
$(".image").mouseover(function(){
$(".hover").show();
})
$(".image").mouseout(function(){
$(".hover").hide();
});
Thanks any help would be great

You Should Read Basic of JavaScript
$(document).ready(function() {
$(".image").mouseover(function(){
$(".hover").show();
})
$(".image").mouseout(function(){
$(".hover").hide();
});
})//added
Updated Demo

You were missing a });
Also, you can simplify your code to:
$(document).ready(function () {
$(".image").mouseover(function () {
$(".hover").show();
}).mouseout(function () {
$(".hover").hide();
});
});
BTW, your HTML is broken. Fix that first.

Both your HTML and JS code are badly written. And you didn't include jQuery is your jsfiddle, which means that '$' isn't recognized.
$(document).ready(function() {
$(".image").mouseover(function(){
$(".hover").show();
});
$(".image").mouseout(function(){
$(".hover").hide();
});
});
You can test it here: http://jsfiddle.net/5PR5E/3/

Javascript / jQuery: Why do I keep getting undefined?

I have the following html code:
<a class="tabTitle" id="title_boxtab_default" tab-type="default" href="#tabs-3">Sample</a>
In jQuery I'm trying to get the value of the href attribute with:
$('.tabTitle').last().attr('href');
But it keeps telling me it's undefined?
I should mention that the number of links with class"tabTitle" increases. That's why I use .last()

Works just fine for me in JSFiddle. I changed it to this, and it returned #tabs-3:
alert($('.tabTitle').last().attr('href'));
My guess is that it's not running from a ready handler like this:
$(function() {
var x = $('.tabTitle').last().attr('href');
});

It should work. Make sure you are running the script when the element is present in the DOM, f.ex using .ready():
$(function() {
alert( $('.tabTitle').last().attr('href') );
});
DEMO: http://jsbin.com/IyeSacU/1/edit

Try DOM Ready
$(document).ready(function(){
$('.tabTitle').last().attr('href');
});
Fiddle

Toggleclass not working, altough should

This is pretty basic, still doesn't work... I'm trying to change the class of my button, which has the id "nav_list". I wrote the script:
var specialSection = document.getElementById("nav_list");
specialSection.onclick = function() {
alert("what");
$('#nav_list').toggleClass('active');
};
I get the "what" alert, but the class isn't toggled. What am I missing? Thanks in advance!

toggleClass is a jQuery method, for use it you must include jQuery in your page.
Like:
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
At the moment if you check the console you must see an error like (demo: http://jsfiddle.net/IrvinDominin/GyaBY/):
ReferenceError: Can't find variable: $
Avoid mixing jQuery and javascript event binding so your code will look like:
$('#nav_list').click(function() {
alert("what");
$(this).toggleClass('active');
});
Demo: http://jsfiddle.net/IrvinDominin/GyaBY/2/

jQuery or onClick Div Fade

I apologize if this is in the wrong section..
Could someone possibly point me towards a script or a tutorial on this:
when I click on something, say for instance an "x", I'll click it, then it fades away on click.
If you understand what I mean, could someone point me in the right direction please?
Thanks!

Please familiarize yourself with Google.
Then familiarize yourself with http://docs.jquery.com/Tutorials:How_jQuery_Works
Try out some code on http://www.jsfiddle.net

refer
$('someclass/id').click(function() {
$('someclass/id').fadeOut();
});
check this
$('a').toggle(
function() { $('#us').fadeIn(); },
function() { $('#us').fadeOut(); }
);
.fadeToggle()
show( effect, [options], [speed], [callback] )jQuery UI

Refer this: http://www.webdesignerwall.com/demo/jquery/
There is small tutorials for different UI elements with good explanation.

This describes how to fade in and fade out an element on click
$(document).ready(function(){
$("#elemntID").click(function() {
$("#ID_of_element_need_to_fade_in").fadeIn("slow");
});
$("#elemntID").click(function() {
$("#ID_of_element_need_to_fade_out").fadeOut("slow");
});
});

Its easy you could have googled that.
jQuery('#divId').click(function(){
jQuery(this).hide('slow'); //this will give a little animated effect.
// or
jQUery(this).fadeOut('slow');
});
http://api.jquery.com/fadeOut/
http://api.jquery.com/hide/

use
$('#id').click(function() {
$('#id').fadeIn();
$('#id').fadeOut();
});
[link][1]
<script>
$("button:first").click(function() {
$("p:first").fadeToggle("slow", "linear");
});
$("button:last").click(function () {
$("p:last").fadeToggle("fast", function () {
$("#log").append("<div>finished</div>");
});
});
</script>