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Adding class names on hover based on conditions

I've created a tabbed module which works by getting content that is in the .content div (which is hidden) and displaying it in a empty div called .overview.
The idea behind this tabbed module is that, on hover (or when class active exists), the content on the right will change based on what header is being selected from the left. I.e. If I hover over a header named "Red", the .overview div on the right will spit out "red".
However, the issues I'm having are the following:
In the demo below, don't hover on any of the headers. The .overview div has no content - which is obviously not ideal. If .tabs has class .active, then I want its content displayed on the right. I have a counter running which changes class active every 5 seconds. I don't only want to show stuff on hover.
Having said the above, if I hover over another tabs div, I want the counter to stop - to prevent it from adding class active to another .tabs div (because the hovered on tabs is active.
Demo:
$(document).ready(function() {
// add class .active on li hover
$('.tabs').mouseenter(function() {
//$('.tabs').removeClass('active');
$(this).parents('.tabs').addClass('active');
});
// Change active tab every x seconds
$(function() {
var list = $(".tabs"),
currentActive = 0;
time = 5; // interval in seconds
setInterval(function() {
currentActive = (currentActive + 1) % list.length;
list.removeClass('active').eq(currentActive).addClass('active');
}, time * 1000);
});
})
var overview = $('.overview');
$('.tabs').each(function(i) {
var thisTab = $(this);
var thisContent = thisTab.find('.content').html();
// when class .active exists, change content in .overview
if ($('.tabs').hasClass('active')) {
overview.html(thisContent);
}
// on hover, change content in .overview
thisTab.on('mouseenter', function(e) {
thisTab.addClass('active');
overview.html(thisContent);
})
.on('mouseleave', function(e) {
thisTab.removeClass('active');
overview.html('');
});
});
.tabs.active {
background: none yellow;
}
.list {
flex-basis: 40%;
}
.list li {
list-style-type: none;
}
.overview {
flex-basis: 60%;
border: 1px solid blue;
}
.content {
display: none;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="d-flex flex-row">
<div class="list">
<li class="tabs active">
<div class="header"><span>Header</span></div>
<div class="content">
<p>Content 1</p>
</div>
</li>
<li class="tabs">
<div class="header"><span>Header 2</span></div>
<div class="content">
<p>Content 2</p>
</div>
</li>
<li class="tabs">
<div class="header"><span>Header 3</span></div>
<div class="content">
<p>Content 3</p>
</div>
</li>
</div>
<div class="overview"> </div>
</div>
Edit:
I've managed to make some movement on issue 1. I've added:
if ($('.tabs').hasClass('active')) {
overview.html(thisContent);
}
Which now, without hover, displays content in .overview, however, the content doesn't change when another tab is .active (i.e. in the demo, don't hover over anything, wait and it just shows content 3 for all headers.

I would do the following (I have commented what I have changed)
$(document).ready(function() {
var list = $(".tabs"),
overview = $('.overview'),
autoInterval, // interval var
currentActive = 0; // make this global to this closure
overview.html(list.eq(0).find('.content').html()); // set overview content
startInterval(); // start interval straight away
// add class .active on li hover
list.mouseenter(function() {
var thisTab = $(this);
currentActive = list.index(this); // set current active
list.removeClass('active'); // remove active class
thisTab.addClass('active'); // add active class
clearInterval(autoInterval); // clear the interval whilst hovering
var thisContent = thisTab.find('.content').html(); // get content
overview.html(thisContent); // set overview content
});
list.mouseleave(function() {
startInterval(); // restart the interval on mouseleave
});
function startInterval() {
// Change active tab every x seconds
time = 5; // interval in seconds
autoInterval = setInterval(function() {
currentActive = (currentActive + 1) % list.length;
list.removeClass('active');
var currentTab = list.eq(currentActive);
currentTab.addClass('active');
overview.html(currentTab.find('.content').html()); // set overview content
}, time * 1000);
}
});
.tabs.active {
background: none yellow;
}
.list {
flex-basis: 40%;
}
.list li {
list-style-type: none;
}
.overview {
flex-basis: 60%;
border: 1px solid blue;
}
.content {
display: none;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="d-flex flex-row">
<div class="list">
<li class="tabs active">
<div class="header"><span>Header</span></div>
<div class="content">
<p>Content 1</p>
</div>
</li>
<li class="tabs">
<div class="header"><span>Header 2</span></div>
<div class="content">
<p>Content 2</p>
</div>
</li>
<li class="tabs">
<div class="header"><span>Header 3</span></div>
<div class="content">
<p>Content 3</p>
</div>
</li>
</div>
<div class="overview"> </div>
</div>

As soon as you add the mouseenter event, you need to stop the interval, you have the method clearInterval to do so.

How to restart sequential pattern, starting from clicked element

I have 4 orange buttons, i'm creating a setInterval function that calls another function in order to make the 4 buttons change color every three secondes, that stuff works well.
Now imagine the current button that is gray is the button 1, logically the next one to change will be button 2, if i click on button 3, i want the button 4 to change and not the 2, so i want to change the next button.
Here is my jsfiddle example
here is my code :
var z = 1;
function updateColor(btn) {
// defilement des boutons de jaune a gris sur desktop
$('.all-divs').find('.btn').removeClass('btn-current');
z++;
$('#btn-'+z).addClass('btn-current').siblings('.btn-current').removeClass('btn-current');
if(z == 4){z = 0;}
}
$(document).ready(function() {
setInterval(updateColor, 3000);
});
$('.btn').click(function(){
$('.btn').removeClass("btn-current");
$(this).addClass("btn-current");
});
.btn{
width:50px;
height:50px;
margin:10px auto;
text-align:center;
background-color:orange;
border-radius:50px;
}
.btn-current{
width:50px;
height:50px;
margin:10px auto;
text-align:center;
background-color:#666;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<div class="all-divs">
<div class="btn" id="btn-1">
1
</div>
<div class="btn" id="btn-2">
2
</div>
<div class="btn" id="btn-3">
3
</div>
<div class="btn" id="btn-4">
4
</div>
</div>
Thank you all

In your button click event, just make this change:
$('.btn').click(function(){
$('.btn').removeClass("btn-current");
$(this).addClass("btn-current");
z = this.id.split('-')[1];
});
jsFiddle Demo

Try this. If I understood correctly, it should help. https://jsfiddle.net/y0dc5ooc/26/
<div class="btn" id="btn-1">1</div>
<div class="btn" id="btn-2">2</div>
<div class="btn" id="btn-3">3</div>
<div class="btn" id="btn-4">4</div>
function updateColor(id) {
$('.btn').removeClass('btn-current');
var btnId = '#btn-' + id;
$(btnId).addClass('btn-current');
}
$(document).ready(function() {
$('.btn').click(function(e){
var id = this.getAttribute('id').substr(4);
if(id ==4)
{id = 1;}
else{ id = parseInt(id) + 1;}
updateColor(id);
});
});

How to create a function to get next id of element in jquery and call this function?

I've created a custom function goToNext() it's just supposed to alert the id of the next element that i've clicked on.
I want to call this custom function inside another click function.
For now when I click on first element it alerts id_2 (next from the first, so it's ok) but if you click the second element it doesn't return id_3 (like it's supposed to be) but it return id_2 same if you click on the last element (supposed to alert the first)
this is my jsfiddle example here
function goToNext() {
var get_next_id = $('.btn').next().attr("id");
alert(get_next_id);
}
$('.btn').click(function() {
goToNext();
});
.btn {
width: 50px;
height: 50px;
margin: 10px auto;
background-color: yellow;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="btn" id="id-1">
1
</div>
<div class="btn" id="id-2">
2
</div>
<div class="btn" id="id-3">
3
</div>

Try this
function goToNext($btn){
var get_next_id = $btn.next().attr("id");
alert(get_next_id);
}
$('.btn').click(function(){
goToNext($(this));
});

You have to use this
function goToNext(thisObj){
var get_next_id = $(thisObj).next().attr("id");
if(get_next_id!=undefined)
alert(get_next_id);
else
alert($(thisObj).parents().find("div:first").attr("id"));
}
$('.btn').click(function(){
goToNext(this);
});
.btn{
width:50px;
height:50px;
margin:10px auto;
background-color:yellow;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class ="btn" id="id-1">
1
</div>
<div class ="btn" id="id-2">
2
</div>
<div class ="btn" id="id-3">
3
</div>

You need to use reference this
function goToNext(e){
var get_next_id = $(e).next().attr("id");
alert(get_next_id);
}
$('.btn').click(function(){
goToNext(this);
});
Updated Fiddle

JQuery Show Hide Multiple Div Button

I need to develop a News page with 3 articles that can be hidden or showed one by one, by means of 2 buttons: "Show more news" and "Show less news"
Each article must be hidden/displayed by clicking the relevant button only once, starting from the last article (at the bottom page) to the first one (top of page). HTML:
<!-- Articles-->
<article id="art-1" class="row" >My first Art</article>
<article id="art-2" class="row art" >My second Art</article>
<article id="art-3" class="row art" >My last Art</article>
<!--Buttons-->
<button class="button-grey" id="show-less-news1">Show Less</button>
<button class="button-grey" id="show-less-news2">Show Less</button>
<button class="button-grey" id="show-less-news3">Show Less</button>
<button class="button-grey" id="show-more-news1">Show More</button>
<button class="button-grey" id="show-more-news2">Show More</button>
<button class="button-grey" id="show-more-news3">Show More</button>
I managed to do this with JQuery but the code is extremely verbose and I need 6 buttons instead of 2, but I believe there must be a simplier way to get the same result with a less complex code. This is the JQuery code:
$("#show-more-news1").css({display:'none'});
$("#show-more-news2").css({display:'none'});
$("#show-more-news3").css({display:'none'});
$("#show-less-news1").css({display:'none'});
$("#show-less-news2").css({display:'none'});
//function 1 less
$("#show-less-news3").click(function(){
$("#art-3").hide(400);
$("#show-less-news3").hide();
$("#show-more-news3").show();
$("#show-less-news2").show();
});
//function 2 less
$("#show-less-news2").click(function(){
$("#art-2").hide(400);
$("#show-less-news2").hide();
$("#show-more-news3").hide();
$("#show-less-news1").show();
$("#show-more-news2").show();
});
//function 3 more
$("#show-more-news3").click(function(){
$("#art-3").show(400);
$("#show-more-news3").hide();
$("#show-less-news2").hide();
$("#show-less-news3").show();
});
//function 3 less
$("#show-less-news1").click(function(){
$("#art-1").hide(400);
$("#show-less-news1").hide();
$("#show-more-news2").hide();
$("#show-more-news1").show();
});
//function 2 more
$("#show-more-news2").click(function(){
$("#art-2").show(400);
$("#show-more-news2").hide();
$("#show-less-news1").hide();
$("#show-less-news2").show();
$("#show-more-news3").show();
});
//function 1 more
$("#show-more-news1").click(function(){
$("#art-1").show(400);
$("#show-more-news1").hide();
$("#show-less-news1").show();
$("#show-more-news2").show();
});
Some CSS:
article {
position: realtive;
width: 100%;
height: 50px;
border: 1px solid red;
float:left;
background-color: yellow;
}
.button-grey {
display: block;
background-color: #cfcfcf;
width: 150px;
height: 30px;
float:right;
}
Here's a CodePen. Can someone help me to get the same result with a better code?
Thanks a lot!

Using your HTML with only two buttons and identical CSS
The following JS works for better for me:
Javascript:
var newsDepth = 3;
var maxNewsDepth = 3;
$('#show-more-news').hide();
$('#show-more-news').click( function () {
(newsDepth < maxNewsDepth ) && newsDepth++;
$('#art-' + newsDepth).show();
$('#show-less-news').show();
if (newsDepth == maxNewsDepth) $('#show-more-news').hide();
});
$('#show-less-news').click( function () {
( newsDepth > 1 ) && newsDepth--;
$('#art-' + (newsDepth + 1)).hide();
$('#show-more-news').show();
if (newsDepth == 1) $('#show-less-news').hide();
});
HTML
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<!-- Articles-->
<article id="art-1" class="row">My first Art</article>
<article id="art-2" class="row art">My second Art</article>
<article id="art-3" class="row art">My last Art</article>
<!--Buttons-->
<button class="button-grey" id="show-less-news">Show Less</button>
<button class="button-grey" id="show-more-news">Show More</button>
Here is a codepen for you

I've got a better version in this jsfiddle.
HTML:
<!-- Articles-->
<div id="articles">
<article id="art-1" class="row">My first Art</article>
<article id="art-2" class="row art">My second Art</article>
<article id="art-3" class="row art">My last Art</article>
</div>
<!--Buttons-->
<button class="button-grey" id="show-less">Show Less</button>
<button class="button-grey" id="show-more" style="display: none">Show More</button>
JS:
var allArticles = $('#articles article');
var visibleCount = 3;
$('#show-less').on('click', function() {
// no more articles to hide
if (visibleCount == 0) return;
// hide the previous one
$(allArticles[--visibleCount]).hide();
// Show the more button
$('#show-more').show();
// hide the less button
if (visibleCount == 0)
$('#show-less').hide();
});
$('#show-more').on('click', function() {
if (visibleCount == allArticles.length) return;
// show the next article
$(allArticles[visibleCount++]).show();
// Show the less button
$('#show-less').show();
// hide the more button
if (visibleCount == allArticles.length)
$('#show-more').hide();
});

auto change div jquery

I am trying to make a div auto hide and show other div like changer. It does not work when I use multi div inside the main div:
<div id="div1">
What actually happens is that it hides all content of the inside div(s)
Is there any way to keep my div(s) for save my style and make an auto changer for my div(s)?
html code
<div id='container'>
<div id='div1' class='display' style="background-color: red;">
<div id="mydiv" style=" left:200; width:100; background-color:#F605C6;">
<div id="main_adv" class="a" style="position:absolute;text-align:left;width:673px;height:256px">
<div id="Layer3" class="a" style="position:absolute;text-align:left;left:176px;top:56px;width:490px;height:171px" title=""></div>
<div id="img_adv" class="a" style="position:absolute;text-align:left;left:4px;top:55px;width:169px;height:172px;" title="">
<img id="ri" class="a" src="thumbs/img1.png" />
</div>
<div id="title_adv" class="a" style="position:absolute;text-align:right;left:4px;top:6px;width:662px;height:40px;" title="">
<div style="position:absolute;text-align:right;right:6px;top:4px;">
<span style="color:#000000;font-family:Arial;font-size:29px;right:5px">some text</span>
</div>
</div>
</div>
</div>
</div>
</div>
<div id='div2' class='display' style="background-color: green;">
div2
</div>
<div id='div3' class='display' style="background-color: blue;">
div3
</div>
</div>
</body>
Javascript code
$('html').addClass('js');
$(function() {
var timer = setInterval( showDiv, 400);
var counter = 0;
function showDiv() {
if (counter == 0) { counter++; return; }
$('div','#container')
.stop()
.hide()
.filter( function() { return this.id.match('div' + counter); })
.show('fast');
counter == 16? counter = 0 : counter++;
}
});

I wrote some basic code that changes divs continiously like you asked :
jsfiddle.net/5jhuK/
HTML
<div id='container'>
<div id='div1' class='display' style="background-color: red;">div1</div>
<div id='div2' class='display' style="background-color: green;">div2</div>
<div id='div3' class='display' style="background-color: blue;">div3</div>
</div>
CSS
.display {
display: none;
}
JS (jQuery)
$(document).ready(function () {
var activeDiv = 1;
showDiv(activeDiv); // show first one because all are hidden by default
var timer = setInterval(changeDiv, 2000);
function changeDiv() {
activeDiv++;
if (activeDiv == 4) {
activeDiv = 1;
}
showDiv(activeDiv);
}
function showDiv(num) {
$('div.display').hide(); // hide all
$('#div' + num).fadeIn(); // show active
}
});
It's really not complicated, next time when you ask something try to be concise and remove unnecessary code (like #mydiv)

a few things:
1. html ids are unique, so you can just do something like below:
2. your code was missing a # in the find (e.g. "#div"+counter)
3. you can use the child selector ">" to just target divs one level down
var counter=1;
function showDiv() {
$('#container > div').hide()
$("#div"+counter).show();
counter == 3? counter = 1 : counter++;
}