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I have a javascript carousel for images and youtube video, but it breaks after playing one video. What part of the functions are causing this?

I have a couple functions that are being used to create a carousel to view youtube videos, but when I add more than one video in the carousel it will disappear entirely or it will disappear after clicking one the next buttons. I am very new to javascript and do not understand where in the functions it is creating that behavior. In the example below it is three images then a video. When I run that way it is fine. However if you change the video to where one of the images are located it will get the video and when you click the next button the whole carousel will disappear, if you put the video in the first image location it will not load at all. I am a video located where each img is located within the html.
<div class="container">
<div id="carouselExampleControls" class="carousel slide" data-ride="carousel" data-interval="false">
<div class="carousel-inner">
<div class="carousel-item active">
<img class="d-block w-100" src="" alt="First slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="" alt="Second slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="" alt="Third slide">
</div>
<div class="carousel-item ">
<div class="carousel-video-inner">
<div class="d-block w-100" id="video-player" data-video-id="S3vJfLAPQAg"></div>
</div>
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleControls" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleControls" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
$(function() {
$(".carousel").on("slide.bs.carousel", function(e) {
var prev = $(this)
.find(".active")
.index();
var next = $(e.relatedTarget).index();
var video = $("#video-player")[0];
var videoSlide = $("#video-player")
.closest(".carousel-item")
.index();
if (next === videoSlide) {
if (video.tagName == "IFRAME") {
player.playVideo();
} else {
createVideo(video);
}
} else {
if (typeof player !== "undefined") {
player.pauseVideo();
}
}
});
});
function createVideo(video) {
var youtubeScriptId = "youtube-api";
var youtubeScript = document.getElementById(youtubeScriptId);
var videoId = video.getAttribute("data-video-id");
if (youtubeScript === null) {
var tag = document.createElement("script");
var firstScript = document.getElementsByTagName("script")[0];
tag.src = "https://www.youtube.com/iframe_api";
tag.id = youtubeScriptId;
firstScript.parentNode.insertBefore(tag, firstScript);
}
window.onYouTubeIframeAPIReady = function() {
window.player = new window.YT.Player(video, {
videoId: videoId,
playerVars: {
autoplay: 1,
modestbranding: 1,
rel: 0
}
});
};
}
Expected result when replacing the images with:
<div class="carousel-video-inner">
<div class="d-block w-100" id="video-player" data-video-id="S3vJfLAPQAg"></div>
would be that it is now a carousel with 4 youtube video's that you can scroll through.
Actual results:
Entire carousel disappears or after playing the first youtube movie it disappears.

Carousel thumb slider stop clone when item less than 3

I am using bootstrap carousel slider now my slider repeating all times . I need to stop repeating item when item count less than 3. I have tried below script. Anyone help me to achieve this.
<div id="carousel" class="carousel slide" data-ride="carousel" data-interval="false">
<div class="carousel-inner">
<div class="item active">
<img src="images/homogeneous/marvel-stone/marvel-stone-detail.jpg" alt="">
</div>
</div>
</div>
<div class="clearfix">
<div id="myCarousel" class="carousel slide" data-interval="false">
<div class="carousel-inner">
<div class="item active">
<div class="thumb"><img src="images/homogeneous/marvel-stone/marvel-stone-thumb1.png" alt=""></div>
</div>
<div class="item">
<div class="thumb"><img src="images/homogeneous/marvel-stone/marvel-stone-thumb2.png" alt=""></div>
</div>
<div class="item">
<div class="thumb"><img src="images/homogeneous/marvel-stone/marvel-stone-thumb3.png" alt=""></div>
</div>
<div class="item">
<div class="thumb"><img src="images/homogeneous/marvel-stone/marvel-stone-thumb4.png" alt=""></div>
</div>
</div>
<!-- /carousel-inner -->
<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
</a>
<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
</a>
</div>
<!-- /myCarousel -->
</div>
<!-- /clearfix -->
Script I was tried for 3 items. But I don't know how to write up for 2 and 1 items with simplified script.
$('#myCarousel').carousel({
interval: false
});
var totalItems = $('.item').length;
if (totalItems > 3) {
//alert();
$('.carousel .item').each(function() {
var next = $(this).next();
if (!next.length) {
next = $(this).siblings(':first');
}
next.children(':first-child').clone().appendTo($(this));
if (next.next().length > 0) {
next.next().children(':first-child').clone().appendTo($(this)).addClass('rightest');
} else {
$(this).siblings(':first').children(':first-child').clone().appendTo($(this));
}
});
} else {
//what to be here
}
my code here

This one working for me.
$('#myCarousel').carousel({
interval: false
});
var totalItems = $('.item').length;
if (totalItems > 3) {
//alert();
$('.carousel .item').each(function(){
var next = $(this).next();
if (!next.length) {
next = $(this).siblings(':first');
}
next.children(':first-child').clone().appendTo($(this));
if (next.next().length>0) {
next.next().children(':first-child').clone().appendTo($(this)).addClass('rightest');
}
else {
$(this).siblings(':first').children(':first-child').clone().appendTo($(this));
}
});
}
else {
//alert("hello");
(function(){
$('.carousel .item').each(function(){
var itemToClone = $(this);
for (var i=1;i<2;i++) {
itemToClone = itemToClone.next();
// wrap around if at end of item collection
if (!itemToClone.length) {
itemToClone = $(this).siblings(':first');
}
// grab item, clone, add marker class, add to collection
itemToClone.children(':first-child').clone()
.addClass("cloneditem-"+(i))
.appendTo($(this));
//listener for after slide
jQuery('.carousel').on('slid.bs.carousel', function(){
//Each slide has a .item class to it, you can get the total number of slides like this
var totalItems = jQuery('.carousel .item').length;
//find current slide number
var currentIndex = jQuery('.carousel .item div.active').index() + 1;
//if slide number is last then stop carousel
if(totalItems == currentIndex){
clearInterval(jQuery('.carousel .item').data('bs.carousel').interval);
} // end of if
});
}
});
}());
}

Bootstrap carousel - pause/Stop the YouTube video while sliding next slide in model box

I have Twitter Bootstrap modal box with carousel multiple slide videos and images. I am adding a YouTube Video to my Twitter Bootstrap carousel. Problem is it moves next slide video still playing in background so I want to stop/pause it on the next/prev slide.
Also i need to stop YouTube Video when close Twitter Bootstrap modal box
I have search around SO but didn't find similar question.

Try this code
$("video").each(function () { this.pause() });
$('#myCarousel').carousel({
interval: 0
});
$('.carousel-control.left').click(function() {
$('#myCarousel').carousel('prev');
});
$('.carousel-control.right').click(function() {
$('#myCarousel').carousel('next');
$("video").each(function () { this.pause() });
});
$('button.close').click(function(){
$("video").each(function () { this.pause() });
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="https://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/js/bootstrap.min.js"></script>
<link href="https://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-combined.min.css" rel="stylesheet">
<div class="row">
<div class="span4 offset4">
<a class="btn" data-toggle="modal" href="#myModal" >Launch Modal</a>
</div>
</div>
<div class="modal fade hide" id="myModal" data-keyboard="true">
<div class="modal-header">
<button class="close" data-dismiss="modal">×</button>
</div>
<div class="modal-body">
<div id="myCarousel" class="carousel slide">
<!-- Carousel items -->
<div class="carousel-inner">
<div class="active item">
<video width="400" controls>
<source src="http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4" type="video/mp4">
Your browser does not support HTML5 video.
</video>
</div>
<div class="item">
<img src="http://placehold.it/300x200/aaa&text=Item 2" />
</div>
<div class="item">
<img src="http://placehold.it/300x200/444&text=Item 3" />
</div>
</div>
</div>
<!-- Carousel nav -->
<a class="carousel-control left" href="#myCarousel" data-slide="prev">‹</a>
<a class="carousel-control right" href="#myCarousel" data-slide="next">›</a>
</div>
</div>

function createVideo(video) {
var youtubeScriptId = 'youtube-api';
var youtubeScript = document.getElementById(youtubeScriptId);
var videoId = video.getAttribute('data-video-id');
if (youtubeScript === null) {
var tag = document.createElement('script');
var firstScript = document.getElementsByTagName('script')[0];
tag.src = 'https://www.youtube.com/iframe_api';
tag.id = youtubeScriptId;
firstScript.parentNode.insertBefore(tag, firstScript);
}
window.onYouTubeIframeAPIReady = function() {
window.player = new window.YT.Player(video, {
videoId: videoId,
playerVars: {
autoplay: 1,
modestbranding: 1,
rel: 0
}
});
}
}
posted by mehaboob from digitalizing india

$(function() {
$('.carousel').on('slide.bs.carousel',function(e){
var prev = $(this).find('.active').index();
var next = $(e.relatedTarget).index();
var video = $('#video-player')[0];
var videoSlide = $('#video-player').closest('.carousel-item').index();
if (next === videoSlide) {
createVideo(video);
}
});
});

Bootstrap Carousel with different hashtag URL ID

I have created a separate URL for each slide of the Bootstrap Carousel. However, it currently uses numbers with a hashtag in the following way:
domain.net/pride#1
domain.net/pride#2
domain.net/pride#3
Is there a way I can have it change to what I want? Something like:
domain.net/pride#events
domain.net/pride#press
domain.net/pride#schedule
Thank You.
<script>
var url = document.location.toString();
if (url.match('#')) {
// Clear active item
jQuery('.carousel-inner div').removeClass('active');
// Activate item number #hash
var index = url.split('#')[1];
jQuery('.carousel-inner div:nth-child(' + index + ')').addClass('active');
}
jQuery('#PrideCr').bind('slid', function (e) {
// Update location based on slide (index is 0-based)
var item = jQuery('#PrideCr .carousel-inner .item.active');
window.location.hash = "#"+parseInt(item.index()+1);
})
</script>

2) by the data-name attribute
http://glebkema.ru/tasks/so-38407398.html
var url = document.location.toString();
if (url.match('#')) {
// Clear active item
$('#PrideCr .item.active').removeClass('active');
// Activate item number #hash
var index = url.split('#')[1];
$('#PrideCr .item[data-name="' + index + '"]').addClass('active');
}
$('#PrideCr').on('slid.bs.carousel', function () {
// Update location based on slide
var item = $(this).find('.item.active').data('name');
if (item) window.location.hash = "#" + item; // Doesn't work on SO
console.log(item);
})
.carousel-inner img {
height: auto;
width: 100%;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<div id="PrideCr" class="carousel slide" data-ride="carousel">
<div class="carousel-inner" role="listbox">
<div data-name="events" class="item active">
<img src="http://placehold.it/600x150/c69/f9c/?text=events" alt="">
</div>
<div data-name="press" class="item">
<img src="http://placehold.it/600x150/9c6/cf9/?text=press" alt="">
</div>
<div data-name="schedule" class="item">
<img src="http://placehold.it/600x150/69c/9cf/?text=schedule" alt="">
</div>
</div>
<a class="left carousel-control" href="#PrideCr" role="button" data-slide="prev"><span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span><span class="sr-only">Previous</span></a>
<a class="right carousel-control" href="#PrideCr" role="button" data-slide="next"><span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span><span class="sr-only">Next</span></a>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
1) by the id attribute
I guess you can add the id attribute to carousel's items and use this attribute in your script. Something like this:
<div class="carousel-inner" role="listbox">
<div id="events" class="item active">
<img src="..." alt="...">
</div>
<div id="press" class="item">
<img src="..." alt="...">
</div>
<div id="schedule" class="item">
<img src="..." alt="...">
</div>
</div>
<script>
var url = document.location.toString();
if (url.match('#')) {
// Clear active item
jQuery('#PrideCr .item.active').removeClass('active');
// Activate item number #hash
var index = url.split('#')[1];
jQuery('#' + index).addClass('active');
}
jQuery('#PrideCr').bind('slid', function (e) {
// Update location based on slide
var item = jQuery('#PrideCr .item.active').attr('id');
if (item) window.location.hash = "#" + item;
})
</script>

lazy load not work in bootstrap carousel

I create carousel using bootstrap 3 like this :
HTML :
<div id="myCarousel" class="carousel slide">
<div class="carousel-inner">
<div class="active item">
<img src="http://rivathemes.net/html/envor/img/posts/3.jpg" class="img-big">
</div>
<div class="item">
<img data-lazy-load-src="http://rivathemes.net/html/envor/img/posts/4.jpg" class="img-big">
</div>
</div>
<div class="carousel-controls">
<a class="left carousel-control" href="#myCarousel" data-slide="prev"><i class="fa fa-angle-double-left fa-lg"></i></a>
<a class="right carousel-control" href="#myCarousel" data-slide="next"><i class="fa fa-angle-double-right fa-lg"></i></a>
</div>
</div>
and add this code for add img lazy load.
JS :
$('#myCarousel').on('slid', function () {
var $nextImage = $('.active.item', this).next('.item').find('img');
$nextImage.attr('src', $nextImage.data('lazy-load-src'));
});
But, This not work for me!? can do fix this ?
Important Q: can i add image preloader for lazy load?!
DEMO : FIDDLE

The answer by dm4web does not account for skipping slides by directly clicking the carousel indicators. This version correctly loads an image regardless of how you slide to it, using Bootstrap's event.relatedTarget (the item being slid into place, see the official documentation). Try running the snippet below and clicking on the indicators to switch several slides ahead.
var cHeight = 0;
$('#carousel-example-generic').on('slide.bs.carousel', function(e) {
var $nextImage = $(e.relatedTarget).find('img');
$activeItem = $('.active.item', this);
// prevents the slide decrease in height
if (cHeight == 0) {
cHeight = $(this).height();
$activeItem.next('.item').height(cHeight);
}
// prevents the loaded image if it is already loaded
var src = $nextImage.data('lazy-load-src');
if (typeof src !== "undefined" && src != "") {
$nextImage.attr('src', src)
$nextImage.data('lazy-load-src', '');
}
});
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="container-fluid">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
<li data-target="#carousel-example-generic" data-slide-to="3"></li>
<li data-target="#carousel-example-generic" data-slide-to="4"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="http://placehold.it/5000x1000">
</div>
<div class="item">
<img data-lazy-load-src="http://placehold.it/5001x1000">
</div>
<div class="item">
<img data-lazy-load-src="http://placehold.it/5002x1000">
</div>
<div class="item">
<img data-lazy-load-src="http://placehold.it/5003x1000">
</div>
<div class="item">
<img data-lazy-load-src="http://placehold.it/5004x1000">
</div>
</div>
<!-- Controls -->
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>

http://jsfiddle.net/ys4je40u/
add lazy-load class to item object
use slide.bs.carousel event
CSS:
.lazy-load {
background: url("http://www.mozart.it/images/preloader.gif") center center no-repeat;
}
JQ:
var cHeight = 0;
$('#myCarousel').on('slide.bs.carousel', function (e) {
var $nextImage = null;
$activeItem = $('.active.item', this);
if (e.direction == 'left'){
$nextImage = $activeItem.next('.item').find('img');
} else {
if ($activeItem.index() == 0){
$nextImage = $('img:last', $activeItem.parent());
} else {
$nextImage = $activeItem.prev('.item').find('img');
}
}
// prevents the slide decrease in height
if (cHeight == 0) {
cHeight = $(this).height();
$activeItem.next('.item').height(cHeight);
}
// prevents the loaded image if it is already loaded
var src = $nextImage.data('lazy-load-src');
if (typeof src !== "undefined" && src != "") {
$nextImage.attr('src', src)
$nextImage.data('lazy-load-src', '');
}
});

If you have multiple images in your slide, you have to use this :
var cHeight = 0;
$('#carousel').on('slide.bs.carousel', function (e) {
var $nextImage = null;
$activeItem = $('.active.item', this);
if (e.direction == 'left'){
$nextImage = $activeItem.next('.item').find('img');
} else {
if ($activeItem.index() == 0){
$nextImage = $('img:last', $activeItem.parent());
} else {
$nextImage = $activeItem.prev('.item').find('img');
}
}
// prevents the slide decrease in height
if (cHeight == 0) {
cHeight = $(this).height();
$activeItem.next('.item').height(cHeight);
}
// => Changes here !
// prevents the loaded images if it is already loaded
$nextImage.each(function(){
var $this = $(this),
src = $this.data('original');
if (typeof src !== "undefined" && src != "") {
$this.attr('src', src)
$this.data('original', '');
}
});
});

Created this "kinda generic" solution some months ago and had no issues so far...
var $ajaxCarousel = $('.carousel-ajax');
if ($ajaxCarousel.length > 0) {
$ajaxCarousel.on('slide.bs.carousel', function (e) {
var $upcomingImage = $(e.relatedTarget).find('img');
if (typeof $upcomingImage.attr('src') === 'undefined') {
$upcomingImage.attr('src', $upcomingImage.data('src'));
}
});
// preload first image
$ajaxCarousel.each(function() {
var $firstImage = $(this).find('[data-slide-number=0]').find('img');
$firstImage.attr('src', $firstImage.data('src'));
});
}
All you have to do in HTML is add "carousel-ajax" class to your existing carousel and prepend "data-" in front of your img's src tags:
<img data-src="..." />