Develop Reference

:not selector with <a> in <div>

I have an a in a div and want to change the window location on click of div.
<div class="div-class">
</div>
$(document).on("click", ".div-class:not(.a-class, .a-class-2)", function() {
window.location = "/somewhere-else";
}
When clicking on either a, a new tab opens and the current window changes location. I want it to be that if you click on any a it will open a new tab, if you click on the containing div it will change window location.

To achieve this you can hook to the a elements directly and call stopPropagation() on the event passed to the handler. This will stop the event bubbling to the div and will ensure only the new tab is opened.
Similarly, you can hook to the click event of the div element to call window.location.assign() to change the page URL. Try this:
$(document).on("click", ".a-class, .a-class-2", function(e) {
e.stopPropagation();
console.log('a clicked');
}).on('click', '.div-class', function() {
console.log('div clicked');
// location.assign("/somewhere-else"); // commented out to stop breaking the snippet
});
/* this is only to make the hit areas more obvious in the snippet */
a { border: 1px solid #C00; }
div { border: 1px solid #0C0; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="div-class">
a-class
a-class-2
</div>

Rory's answer works, but I don't think it needs two handlers or to call stopPropagation (which can be harmful). You can filter on the event target using jQuery.is
$(document).on("click", ".div-class", function(event) {
if (!$(event.target).is(".a-class, .a-class-2")) {
console.log("going /somewhere-else");
}
// You could also do
if( $(event.target).is(".div-class") ) {
console.log("going /somewhere-else v2");
}
});
a { background-color: #eee; }
div { border: 1px solid #0C0; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="div-class">
link 1
link 2
</div>

Common date picker conundrum

I have a simple date picker page. My calendar lives in an iframe which is inside a div. I have an onfocusout attached to the div that closes the div.
The problem is when I click on the calendar, the select event for the calendar never fires because the onfocusout fires and the div disappears.
How can I best handle the common date picker workflow? The link following is a similar abstraction where blue div represents the calendar. When I click on the blue div I don't want red event to fire.
https://jsfiddle.net/1ye6yn43/5/
#divouter {
background-color: red;
height: 45vh;
}
#divinner {
background-color: blue;
height: 25vh;
width: 75vh;
}
<div id="divouter">
outer
<div id="divinner">
inner
</div>
</div>
var blueclick = document.getElementById('divinner');
blueclick.onclick = function(event) {
alert('blue');
event.preventDefault();
}
var redclick = document.getElementById('divouter');
redclick.onclick = function() {
//alert('red');
redclick.style.visibility = 'hidden';
}
redclick.onfocusout = function() {
alert('red focus out');
}

Add event.stopPropagation(); to your blue event

Click Propagation failing in Jquery

For part of the site I'm working on, I have a set of sidebars that can pull out. To have them hide when the users are done with them, I've set up a div with a click event (see below) so that whenever the user clicks somewhere outside of the sidebar, the sidebar closes. The problem that I'm running into, however, is that the click event handler is grabbing the event, running its method, and then the click event seems to stop. I've tried using return true and a few other things I've found around here and the internet, but the click event just seems to die.
$('.clickaway').click(function() {
$('body').removeClass(drawerClasses.join(' '));
return true;
});
EDIT: Here is a fiddle with an example: https://jsfiddle.net/2g7zehtn/1/
The goal is to have the drawer out and still be able to click the button to change the color of the text.

The issue is your .clickaway layer is sitting above everything that's interactive, such as your button. So clicking the button, you're actually clicking the layer.
One thing you could do is apply a higher stacking order for elements you want to interact with, above the .clickaway layer. For example, if we apply position: relative, like this:
.show-drawerHotkey .ColorButton {
position: relative;
}
The element will now be in a higher stacking order (since it comes after the clickaway, and we've applied no z-index to clickaway)
Here's a fiddle that demonstrates: https://jsfiddle.net/2g7zehtn/5/

Using this somewhat famous SO answer as a guide, you can bind to the $(document).mouseup(); event and determine whether certain "toggling" conditions apply:
[EDIT] - Example updated to illustrate clicking a link outside of the containing div.
// Resource: https://stackoverflow.com/questions/1403615/use-jquery-to-hide-a-div-when-the-user-clicks-outside-of-it
var m = $('#menu');
var c = $('#menuContainer');
var i = $('#menuIcon');
i.click(function() {
m.toggle("slow");
});
$(document).mouseup(function(e) {
console.log(e.target); // <-- see what the target is...
if (!c.is(e.target) && c.has(e.target).length === 0) {
m.hide("slow");
}
});
#menuIcon {
height: 15px;
width: 15px;
background-color: steelblue;
cursor: pointer;
}
#menuContainer {
height: 600px;
width: 250px;
}
#menu {
display: none;
height: 600px;
width: 250px;
border: dashed 2px teal;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
I'm a link outside of the container
<div id="menuContainer">
<div id="menuIcon"></div>
<div id="menu"></div>
</div>

How should i improve my jQuery click funciton?

So i'm learning some jQuery at the moment and got somewhat stuck with this .click function. I'm trying to "turn a light on and off", so to speak.
I am able to do so, but only once. Why is that, that my code only runs for one click event per item, and how should i improve it?
Link to my JSfiddle.
HTML
<div class="lightOn"></div>
<div class="lightOff"></div>
jQuery
$('.lightOn').click(function() {
$(this).removeClass('lightOn');
$(this).addClass('lightOff');
});
$('.lightOff').click(function() {
$(this).removeClass('lightOff');
$(this).addClass('lightOn');
});
CSS
.lightOn {
height: 90px;
width:90px;
background-color:yellow;
border-radius: 100%;
float:left;
margin:10px;
}
.lightOff {
height: 90px;
width:90px;
background-color:grey;
border-radius: 100%;
float:left;
margin:10px;
}

The issue is because you are removing the class you are selecting by, so for successive clicks the element no longer exists. Instead have a common class which remains, but add one to it to light up the object. Try this:
<div class="light"></div>
<div class="light"></div>
.light.on {
background-color:yellow;
}
.light {
height: 90px;
width:90px;
background-color:grey;
border-radius: 100%;
float:left;
margin:10px;
}
$('.light').click(function() {
$(this).toggleClass('on');
});
Example fiddle
This method has the benefit of being able to handle x number of .light elements wihtout having to amend the jQuery selector you use.

The problem is that you bind the functions to elements, not to selectors. That is to say, you bind a function that removes the class lightOn to the element that had that class originally. That function only ever removes the lightOn class and adds the lightOff class, even if that has already been done once.
There are two ways to fix this. One is with on and event delegation, which allows you to do something akin to binding to a selector. It attaches the handler to a parent element, and makes use of the fact that all ancestor elements are notified of events that originated on their descendents. So the function might be bound to document.body, but only elements that originated on an element matching the .lightOn selector will trigger the handler:
$(document.body).on('click', '.lightOn', function() {
$(this).removeClass('lightOn').addClass('lightOff');
}).on('click', '.lightOff', function() {
$(this).removeClass('lightOff').addClass('lightOn');
});
http://jsfiddle.net/lonesomeday/C6f7u/5/
Better, however, is to make use of jQuery's toggleClass function, which removes classes if the element currently has them and adds them if it doesn't.
$('.lightOn,.lightOff').click(function() {
$(this).toggleClass('lightOn lightOff');
});
http://jsfiddle.net/lonesomeday/C6f7u/2/

What about
$('.lightOn, .lightOff').click(function() {
$(this).toggleClass('lightOn lightOff');
});
Demo: Fiddle

You can try using toogleClass of jquery
http://api.jquery.com/toggleClass/

It's a good practice to attach your events to the parent element. In your case this is even mandatory, because you are changing the classes, which are used during the event binding. So, your HTML:
<div class="ligths">
<div class="lightOn"></div>
<div class="lightOff"></div>
</div>
JS:
$(".ligths").on("click", "div", function(e) {
var el = $(this);
if(el.hasClass("lightOn")) {
el.removeClass("lightOn").addClass("lightOff");
} else {
el.removeClass("lightOff").addClass("lightOn");
}
});
JSFiddle: http://jsfiddle.net/C6f7u/7/

Overlay the div on the div of contact form

Following is my fiddle in which i made a div with class overlay and i am trying to do that when user clicks on submit button then that overlay class div appears on the div of contact form and on clicking close button that div hides and it shows the reset form again. Kindly let me know how can I make such kind of overlay on the contact form on submit button
http://jsfiddle.net/VqDKS/
.overlay
{
background-color: yellow;
height:200px;
width: 300px;
}

See this, edited with jQuery and CSS. Set the overlay to position: absolute and hide it before the form is submitted. Then remove it when the 'Close'-button is clicked.
http://jsfiddle.net/VqDKS/3/

CSS:
.overlay
{
background-color: yellow;
height:200px;
width: 300px;
position: absolute;
top: 0px;
z-index: 99;
display: none;
}
Jquery code:
function js()
{
alert('clicked submit: get typed name');
var name = $("#FN3").val();
$("#name").html( name );
$(".overlay").fadeIn()
return false;
}
$(document).ready(function(){
$(".close").click(function(){
$(".overlay").fadeOut();
$('#contact_form3 input[type="text"]').val('');
});
});
Make following change in HTML:
<input type="button" value="close" class="close">

You need to hide your overlay at the beginning just show the form. When clicked submit, show overlay and hide the form. Then when close is clicked hide the overlay and show the form.
It can be as :
function js()
{ alert('clicked submit: get typed name');
var name = $("#FN3").val();
$("#name").html( name );
$("#form-div").hide();
$(".overlay").show();
return false;
}
function closeOverlay(){
$("div.overlay").hide();
$("div#form-div").show();
}
please have a look here :
http://jsfiddle.net/injulkarnilesh/VqDKS/7/

Basically you need to set the contact form wrapper position property to relative and then just set position of your overlay to absolute, something like this:
.contact_wrapper { position: relative; }
.overlay { position: absolute; top: 0; left: 0; }
This way you will be sure that your overlay will be absolute positioned on the top of your contact form.
When page is loaded, we don't need the overlay, so you can add the following property:
.overlay { display: none; }
In your code, when you submit the form you are using onclick event to execute your handler.
Here you need to make overlay visible again, you can use .show() of jQuery:
$('.overlay').show();
And now you need to add event handler to deal with close button, you can simply add unique idintifier (e.g. class) to the element, then with jQuery you can trigger click event for this element and here you can hide your overlay.
$('.closeBtn').click( function() {
$('.overlay').hide();
});
By the way, you can read about .submit() and .ajax() methods in jQuery.
Here is a working jsFiddle.

I updated your fiddle a bit: http://jsfiddle.net/nweevers/VqDKS/8/
This is a way to do this. But then your form isn't still submitted.
The best way is to show the overlay after the post. And then you can hide the overlay with the button.
$overlay.on('click', 'input[type=button]', function() {
$overlay.hide();
});