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How do I detect hover to elements inside of each() in jQuery?

Thanks for taking a look at my question.
I'm trying to be able to hover over portfolio items but I need to loop through them using each() because I need some way of identifying each item.
I'm trying to hover over .recent-work-item to show .recent-work-item__overlay the .show-none class does display:none;
Neither the hover nor the on.("mouseenter", function(){}) is working.
Here is the HMTL:
<section class="recent-work-item" data-portfolio-id="rwi-<?php echo $i;?>">
<div class="recent-work-item__overlay show-none">
<h3 class="color-white bolder-font"><?php the_title(); ?></h3>
VIEW CASE
</div>
<div class="recent-work-img">
<img src="<?php echo get_template_directory_uri();?>/assets/img/work1.jpg" class="portrait">
</div>
Here is the jQuery:
$.each($('.recent-work-item'), function(){
var thisid = $(this).attr("data-portfolio-id");
console.log(thisid);
$("[data-portfolio-id="+"'"+thisid+"']").on('mouseenter', function(){
$(thisid).find('.recent-work-item__overlay').removeClass('show-none');
});
$("[data-portfolio-id="+"'"+thisid+"']").on('mouseleave',function(){
$(thisid).find('.recent-work-item__overlay').addClass('show-none');
});
});
This is not working, I can't get the hover to work and all I want to do is add or remove a class, can I not do this in each().
I've researched thoroughly in StackOverflow but can't find an answer. I would REALLY appreciate any help I can get on this.

I have test your code in my codepen, and the problem you should use $(this) than use $(thisid)
$.each($('.recent-work-item'), function(){
var thisid = $(this).attr("data-portfolio-id");
$("[data-portfolio-id="+"'"+thisid+"']").on('mouseenter', function(){
$(this).find('.recent-work-item__overlay').removeClass('show-none');
});
$("[data-portfolio-id="+"'"+thisid+"']").on('mouseleave',function(){
$(this).find('.recent-work-item__overlay').addClass('show-none');
});
});
Here look at my codepen

Here I have added an example that shows how you could use CSS to show/hide elements. It might not give you exact answer to your problem, but it will help you change your stylesheets as per your requirement.
Essentially, as per the discussion in comments, I don't think you need javascript to design the page the way you need it.
.container {
padding: 10px;
border: 1px solid gray;
}
.container > .hideOnHover {
display: block;
}
.container > .showOnHover {
display: none;
}
.container:hover > .hideOnHover {
display: none;
}
.container:hover > .showOnHover {
display: block;
}
<div class="container">
<div class="hideOnHover">
This text will be hidden on hover.
</div>
<div class="showOnHover">
This text will be shown on hover.
</div>
</div>

jQuery click event seems to be kind of late

I'm working on a Facebook reaction bar so it is pretty hard to copy the code here because it has a lot of events binded but all of you got facebook so if you want to check it by yourself - please do it.
The thing is that I managed to move the reaction bar under the react root and now I wanted to make the clicked reaction counter change the background color of itself to green.
And everything is working almost good excluding one thing: it is one click behind. To make you understand better I recorded little example how it looks. The red pulse ring appears when I click: https://vid.me/HqYp
Here is the changing code:
$(this).find('div._iu-[role="toolbar"]').bind('click',function(){
$(this).find('p.counter').each(function(){$(this).css('background-color','#48649F');});
$(this).find('span[aria-pressed="true"]').find('p.counter').css('background-color','green');
});
$(this) is div[id*="post"] so in $(this) I'm getting div with the whole post.
I thought that maybe I should use a callback function after changing-every-counter-to-default-color function but I don't know am I right and if it's right solution.
Thanks from above. (:

You can probably simplify this a bit. Although without the html structure I can't know for sure how the layout of the function works with respect to the event origin. Also I am not sure when the aria-pressed is set to true so I made the function a bit more generic. You simply add a data attribute to target the span you want to be targeted by the click.
<div class="_lu-" role="toolbar" data-target=".facebook-counter">
Later in your javascript you do the following
var $t = $(this);
var $t.target = $(this).data('target');
$t.on('click','div._lu-[role="toolbar"]', function() {
$t.find($t.target).css({
'background-color':'green'
}).siblings().css({'background-color','#48649F'});
});
This code is assuming first that your spans are in the same container, and second that the first $(this) refers to the parent container of this whole toolbar, and last that you have put data-target="" attributes with selectors for the appropriate target you want to affect.
This is a sample:
$(document).ready(function(){
$('.toolbar').on('click','.toolbar-item .icon', function(event) {
event.preventDefault();
event.stopPropagation();
if(!this.$) this.$ = $(this);
if(!this.parent) this.parent = this.$.parent();
if(!this.counter) this.counter = this.$.siblings('.counter');
this.parent.addClass('selected').siblings('.selected').removeClass('selected');
var count = this.counter.data('value');
count++;
this.counter.data('value',count);
this.counter.html(count);
});
});
.toolbar {
font-size:0;
text-align:center;
}
.toolbar-item .icon {
background:#FFF;
padding:30px;
border:1px solid #AAA;
border-radius:100%;
margin:0 20%;
transition:0.8s ease all;
}
.selected .icon {
background:#369;
}
.toolbar-item .counter {
background:#E0E0E0;
margin:0 10px;
transition:0.4s ease background;
}
.selected .counter {
background:#509050;
}
.toolbar-item {
font-size:10pt;
width:25%;
display:inline-block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="toolbar">
<div class="toolbar-item">
<div class="icon">Like</div>
<div class="counter" data-value="0">0</div>
</div>
<div class="toolbar-item">
<div class="icon">Wow</div>
<div class="counter" data-value="0">0</div>
</div>
<div class="toolbar-item">
<div class="icon">Sad</div>
<div class="counter" data-value="0">0</div>
</div>
<div class="toolbar-item">
<div class="icon">Angry</div>
<div class="counter" data-value="0">0</div>
</div>
</div>

As of jQuery 1.7 they introduced the .on('click', function().... method. Try that instead and see if you get the same results.

Quick answer without having tested or the time to test your code. I recently had a performance issue with a nested function, so maybe look at that second line with the .each() method.

On hover, find a matching class from a set of divs and assign a class name to a match (jquery/js)

js/jquery newbie here.
I'm trying to create in interactive map where some markers are absolutely positioned on a page and when hovered over, their related info pane should appear on the top left part of the screen. Preferably, fade in and fade out on mouse out. I've tried various things but nothing seems to work. here is a simplified markup that should hopefully show what I'm trying to do:
<div class="body">
<div class="links">
<span class="one">1</span>
<span class="two">2</span>
<span class="three">3</span>
<span class="four">4</span>
</div>
<div class="panel">
<span class="one"> 1</span>
<span class="two">2</span>
<span class="three">3</span>
<span class="four">4</span>
</div>
</div>
css:
.body .panel span{
display:block;
width:100px;
height:100px;
background:red;
margin:10px;
text-align:center;
display: none;
color:white;
}
.links span{
display: block;
}
.body .panel span.visible{
display: block;
}
some jquery I've been trying to understand. got it from somewhere around here
$(document).ready(function(){
$(".links span").hover(function() {
var index = $(this).index();
$(".panel span").each(function() {
$(this).eq(index).toggleClass("visible");
});
});
});

Just made a Fiddle
$(".links span").hover(function() {
var index = $(".links span").index($(this));
$(".panel span").eq(index).toggleClass("visible");
});
As you only want to display the related span, it's not necessary to use each().
And just some further information as you mentioned you're new to js/jquery - it's (in this case, not in general) also possible to use this instead of $(this) - var index = $(".links span").index(this); - as both will return the same result. this is the DOM object in the context of the hover() callback function, $(this) a jquery object. To illustrate the difference and the same result, I've just added a console message for both in an adjusted Fiddle.
As reference a nice article about "this" - http://remysharp.com/2007/04/12/jquerys-this-demystified

Show/Hide divs that occupy the same space with separate links

I'm having an issue with trying to get divs to occupy the same space, and to also have a show/hide ability on them when clicking their respective links.
Can anybody please let me know the proper jQuery to put in to make this happen? Below is the code without jQuery.
The idea is that when I click on Print 1, then the piece #1 will show up, and when I click Print 2, #1 will disappear and #2 will take it's place.
Current HTML looks something vaguely like this:
<div id="content">
<div id="SideNav">
<ul>
<li>
<a>Print 1</a>
</li>
<li>
<a>Print 2</a>
</li>
</ul>
</div>
<div id="pieces">
<div id="1">
</div>
<div id="2">
</div>
</div>
</div>
CSS is basically this:
#content {
width:848px;
position:relative;
}
#SideNav {
width:169px;
float:left;
}
#pieces {
width:678px;
top:0px;
float:right;
position:relative;
}
#1 {
position:absolute;
top: 0px;
right: 0px;
z-index:1;
}
#2 {
position:absolute;
top: 0px;
right: 0px;
z-index:2;
}

JSFIDDLE
a Basic example of what you want to achieve :
JS :
$('a').on("click",function(){
alert($(this).text());
if($(this).text() == "Print 1"){
$('#1').show();
$('#2').hide();
}else{
$('#2').show();
$('#1').hide();
}
});
putting an event on click of your anchors and then checking the value of the clicked anchor.

Assuming the first link toggles the visibility of the first div and the second link toggles the second div
$('a').click(function() {
var index = $(this).closest('li').index();
$('#pieces div').eq(index).toggle();
}
And set display:none on the the second div

The trick is to make your markup structure a little more meaningful, and your CSS styling a little more generalized. This allows you to leverage common indexes between the links and the tabs below, as well as to define the style using a single CSS class. Then you can easily scale the solution for any number of links and panels:
jsFiddle
HTML
<div id="content">
<div id="SideNav">
<ul>
<li> Print 1
</li>
<li> Print 2
</li>
</ul>
</div>
<div id="pieces">
<div id="panel1" class="panel">First Div</div>
<div id="panel2" class="panel">Second Div</div>
</div>
</div>
CSS
/*
#content, #SideNav, #pieces
Same As Before
*/
.panel {
display: none;
position:absolute;
top: 0px;
right: 0px;
}
JS
$(function () {
$("a[id^='link']").click(function (e) {
e.preventDefault();
var index = this.id.replace("link", "");
$(".panel").hide();
$("#panel" + index).show();
});
});

You setup the click function for each of the anchors within the #sideNav container, prevent the default anchor tag function(preventDefault(), in case an href attribute is provided) and then execute what you want to do.
$('#sideNav a').click(function(e){
// prevent default link event
e.preventDefault();
// use show()/hide() or toggle()
});

HTML objects growing and pushing others

How could I make it so that given two elements let's say these boxes:
If I clicked over one, it would grow, and the other would shrink like and vice versa:
How can I do this?
I have seen this sort of done with CSS, using the focus tag and adjusting the width. But I have two problems there, first how could I affect the other element, and second as far as I can tell adjusting width will only stretch them right. I have seen people change the way they float the elements to deal with that, but I don't want to move them around the page to do this.

Here are 2 examples without Javascript/jQuery:
Pure CSS - Trigger on click: (example)
Using the checkbox hack in CSS you can effectively toggle the widths of the elements when the checkbox is :checked. Here is what part of the CSS looks like:
input[type=checkbox]:checked ~ .red {
width:70%;
}
input[type=checkbox]:checked ~ .green {
width:20%;
}
Go to the example for the full CSS.
HTML
<input type="checkbox" id="toggle" />
<div class="red">
<label for="toggle"></label>
</div>
<div class="green">
<label for="toggle"></label>
</div>
You might also be interested in the original example I made. It takes a different approach, though it doesn't fully work.
Pure CSS - Trigger on hover: (example)
Unfortunately, neither the adjacent selector, nor the general sibling selector can select previous elements, therefore it makes this a little difficult. I placed 2 general elements before the main elements in order to somewhat solve this issue.
.greenS:hover, .greenS:hover ~ .green,
.redS:hover, .redS:hover ~ .red {
width:72%;
}
.greenS:hover ~ .redS, .greenS:hover ~ .red,
.redS:hover ~ .greenS, .redS:hover ~ .green {
width:22%;
}
HTML
<div class="redS"></div><div class="greenS"></div>
<div class="red"></div>
<div class="green"></div>
Since this was tagged as JS/jQuery, here are 2 alternative solutions.
JS/jQuery - Trigger on click: (example)
$('.red, .green').click(function(){
$('.red').toggleClass('expanded')
.next('.green').toggleClass('contracted');
});
JS/jQuery - Trigger on hover: (example)
$('.red').hover(function(){
$(this).toggleClass('expanded')
.next('.green').toggleClass('contracted');
});
$('.green').hover(function(){
$(this).toggleClass('expanded')
.prev('.red').toggleClass('contracted');
});

See jQuery .animate() method documentation.
Example on jsfiddle:
.box {
width: 100px;
height: 100px;
display: inline-block;
}
#box1 {
background: red;
}
#box2 {
background: blue;
}
<div class="box" id="box1"></div>
<div class="box" id="box2"></div>
$('.box').click(function() {
var currentWidth = $(this).outerWidth(),
siblingCurrentWidth = $(this).siblings('.box').outerWidth();
$(this).animate({'width' : currentWidth/2})
.siblings('.box').animate({'width' : siblingCurrentWidth*2});
});
This is a very simple example with several flaws, but it demonstrates a possibility for what your purpose is.

Simple example http://jsfiddle.net/PeLub/ ( modify how you need) .
<div class="box" id="first"></div>
<div class="box" id="second"></div>
$("#first").click(function(){
$(this).animate({width:'50px'}, 500);
$("#second").animate({width:'150px'}, 500);
});
$("#second").click(function(){
$(this).animate({width:'50px'}, 500);
$("#first").animate({width:'150px'}, 500);
});