We Keep Coding

jQuery element styles are not working in Safari

I created a bootstrap carousel slider in my HTML. When loading and reloading the page, it takes a second to load the carousel image and meantime all the image borders and carousel indicators are there. Then I created a code to invisible all the borders and elements of carousel until loading the image. This is working perfectly in Chrome, Firefox, IE, Edge and Opera but doesn't working in Safari.
$(".carousel-img").on('load', function() {
$(".carousel-indicators").css({
display: "-webkit-flex",
display: "-webkit-box",
display: "-moz-flex",
display: "-moz-box",
display: "-ms-flexbox",
display: "flex",
"flex-direction": "row"
});
}).attr("src", $(".carousel-img").attr("src"));
.carousel-indicators {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"><img src="https://dummyimage.com/100x50/00f/ff0" alt="..."></li>
<li data-target="#carousel-example-generic" data-slide-to="1"><img src="https://dummyimage.com/100x50/0f0/f0f" alt="..."></li>
<li data-target="#carousel-example-generic" data-slide-to="2"><img src="https://dummyimage.com/100x50/f00/0ff" alt="..."></li>
</ol>
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="https://dummyimage.com/100x50/00f/ff0" alt="..." class="carousel-img">
<div class="carousel-caption">
1
</div>
</div>
<div class="item">
<img src="https://dummyimage.com/100x50/0f0/f0f" alt="..." class="carousel-img">
<div class="carousel-caption">
2
</div>
</div>
<div class="item">
<img src="https://dummyimage.com/100x50/f00/0ff" alt="..." class="carousel-img">
<div class="carousel-caption">
2
</div>
</div>
</div>
<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>
In safari, This carousel-indicators are not showing at all. All the other browsers are showing it correctly. How to fix it?

This is my solution:
I moved some code in functions
I moved CSS from JS to CSS
I check for load event as well as complete status for every img
If complete or loaded I remove that image from the queue
If queue empty, show indicators
console.clear()
jQuery(function($) {
var $queue = $(".carousel-img")
var total = $queue.length;
$queue
.each(checkLoaded)
$queue
.on('load', onloadImage)
function checkShowIndicators() {
if ($queue.length === 0) {
$(".carousel-indicators").addClass('after-load')
}
}
function onloadImage() {
console.info('loaded: ' + $(this).attr('src'))
$queue = $queue.not(this)
checkShowIndicators();
}
function checkLoaded() {
if ($(this).get(0).complete) {
console.info('complete: ' + $(this).attr('src'))
$queue = $queue.not(this)
checkShowIndicators();
}
}
});
.carousel-indicators{
display: none;
}
.carousel-indicators.after-load {
display:-webkit-flex;
display:-webkit-box;
display:-moz-flex;
display:-moz-box;
display:-ms-flexbox;
display:flex;
flex-direction: row;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"><img src="https://dummyimage.com/100x50/00f/ff0" alt="..."></li>
<li data-target="#carousel-example-generic" data-slide-to="1"><img src="https://dummyimage.com/100x50/0f0/f0f" alt="..."></li>
<li data-target="#carousel-example-generic" data-slide-to="2"><img src="https://dummyimage.com/100x50/f00/0ff" alt="..."></li>
</ol>
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="https://dummyimage.com/100x50/00f/ff0" alt="..." class="carousel-img">
<div class="carousel-caption">
1
</div>
</div>
<div class="item">
<img src="https://dummyimage.com/100x50/0f0/f0f" alt="..." class="carousel-img">
<div class="carousel-caption">
2
</div>
</div>
<div class="item">
<img src="https://dummyimage.com/100x50/f00/0ff" alt="..." class="carousel-img">
<div class="carousel-caption">
2
</div>
</div>
</div>
<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>

And if you try to add the line display:"-webkit-flexbox",
$(".carousel-img")
.on('load', function() {
$(".carousel-indicators").css({ display:"-webkit-flex",
display:"-webkit-box",
display:"-webkit-flexbox",
display:"-moz-flex",
display:"-moz-box",
display:"-ms-flexbox",
display:"flex",
"flex-direction":"row"
});
})
.attr("src", $(".carousel-img").attr("src"));

Please try to look like.
$(".carousel-img")
.on('load', function() {
$(".carousel-indicators").css({ display:"-webkit-flex",
display:"-webkit-box",
display:"-moz-flex",
display:"-moz-box",
display:"-ms-flexbox",
display:"-webkit-flexbox",
display:"flex",
"flex-direction":"row"
});
})
.attr("src", $(".carousel-img").attr("src"));

Bootstrap Carousel to have different URL for each slide

My bootstrap carousel is located here: testdomain.org/about.html and when the slide changes, the URL in the address bar remains the same. I want the URL to auto change when the slides change to something like this:
https://testdomain.org/about.html#slide1
https://testdomain.org/about.html#slide2
https://testdomain.org/about.html#slide3
How can we make this happen?I created this JSFiddle Demo for your convenience. I don't know how to go about writing JS for this :(
It's the standard bootstrap HTML:
<div id="myCarousel" class="carousel slide" data-ride="carousel">
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="img_chania.jpg" alt="Chania">
<div class="">
<h3>Chania</h3>
<p>The atmosphere in Chania has a touch of Florence and Venice.</p>
</div>
</div>
<div class="item">
<img src="img_chania2.jpg" alt="Chania">
<div class="">
<h3>Chania</h3>
<p>The atmosphere in Chania has a touch of Florence and Venice.</p>
</div>
</div>
<div class="item">
<img src="img_flower.jpg" alt="Flower">
<div class="">
<h3>Flowers</h3>
<p>Beatiful flowers in Kolymbari, Crete.</p>
</div>
</div>
<div class="item">
<img src="img_flower2.jpg" alt="Flower">
<div class="">
<h3>Flowers</h3>
<p>Beatiful flowers in Kolymbari, Crete.</p>
</div>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" 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="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
DEMO Screenshot of the URL in the Address bar should look like this

Use the carousel Events to determine when a slide transition happens and which slide has been activated. Then update the address bar and browser history with the slide URL. Instructions for both are at the links below:
http://getbootstrap.com/javascript/#carousel-events
Updating address bar with new URL without hash or reloading the page

Try adding the following javascript, amending references where applicable. You will also need to add an ID to <div class="carousel-inner" role="listbox">. I worked the below off the following - <div class="carousel-inner" id="listbox" role="listbox">.
childsList = Array.prototype.slice.call( document.getElementById('listbox').children );
$("#myCarousel").on('slide.bs.carousel', function (event) {
window.location.hash = "slide" + (childsList.indexOf(event.relatedTarget) + 1);
}
This picks up the event of a slide changing, picks up the index of the slide and sets the '#' in the URL to '#slide[index of slide + 1]'. I hope this helps.
Here is a fiddle doing the same thing but outputting to a rather than the URL. https://jsfiddle.net/JokerDan/22botkvm/

Using Javascript/JQuery to cycle Active class on Bootstrap Carousel

So I am in the process of developing a Bootstrap Carousel Module for a CMS I am using.
The issue I am having is that when the CMS is implementing the carousel using the images uploaded by the user, the active class is missing from the carousel item, therefore, it is not showing up to start with or cycling through the images.
<section class="image-carousel">
<div id="carousel" class="carousel slide" data-ride="carousel" data-interval="4000">
<div class="carousel-inner" role="listbox">
<div class="item">
<img src="image1.jpg">
<div class="carousel-caption">
Caption goes here
</div>
</div>
<div class="item">
<img src="image2.jpg">
<div class="carousel-caption">
Caption goes here
</div>
</div>
<div class="item">
<img src="image3.jpg">
<div class="carousel-caption">
Caption goes here
</div>
</div>
</div>
<a class="left carousel-control" href="#carousel" 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" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</section>
I want to use Javascript/JQuery to add an active class to the first item, and then remove this class and add it to the next item in a given interval
How can i do this?

not tested:
//init some variables
var currentItem= 0;
var delay= parseInt($('#carousel').prop('data-interval'));
//set first item active
$('.carousel-inner .item').first().addClass('active');
//wait delay milliseconds to call nextItem function
setInterval(nextItem, delay);
function nextItem(){
//increase index, and loop if necessary
currentItem++;
if (currentItem== $('.carousel-inner .item').length) currentItem= 0;
//remove 'active' class from all items, and add it to the current one
$('.carousel-inner .item').removeClass('active').eq(currentItem).addClass('active');
//wait delay milliseconds to call this function again
setInterval(nextItem, delay);
}

Bootstrap Carousel Don't start from the beginning

I am implementing a fancy survey with carousel.
<div id="myCarousel" class="carousel slide" data-interval="false" data-ride="carousel" style="vertical-align: center">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
...
<li data-target="#myCarousel" data-slide-to="n"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
page 1
</div>
<div class="item">
page 2
</div>
...
<div class="item">
page n
</div>
</div>
<!-- Left and right controls -->
<a class="left" href="#myCarousel" 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" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
Is there a way to make carousel behave more like a sliding window which mean that it is not possible to go in an n-element carousel:
from Page 1 to Page n
from Page n to Page 1
EDIT
Somehow it seems that i discribed the problem not well enought. So i try better:
So first of all the carousell is in its original purouse meant for displaying pictures:
http://www.w3schools.com/bootstrap/bootstrap_carousel.asp
i know use different forms inside each "Page" of the carousel.
You can go to the next "Page" of a carousel by clicking on the button on the right or to the last if you click the button on th right.
Now my only problem is - since this shall become a survey - that when Page one with my first question loads, a user can click the button on the left and will go to the end of the carousel (last page/page n).
Is it possible to disable this feature?

I am sure there are more elegant solutions, but this might get you started:
jsFiddle Demo
HTML:
<div class="container">
<div class="row">
<div id="s1" class="slide">
<div class="shead">Slide Title 1</div>
<div class="sbody">Here is body of slide 1 with questions</div>
<div class="sfoot"><button>Next</button></div>
</div><!-- .slide -->
<div id="s2" class="slide">
<div class="shead">Slide Title 2</div>
<div class="sbody">Here is body of slide 2 with questions</div>
<div class="sfoot"><button>Next</button></div>
</div><!-- .slide -->
<div id="s3" class="slide">
<div class="shead">Slide Title 3</div>
<div class="sbody">Here is body of slide 3 with questions</div>
<div class="sfoot"><button>Next</button></div>
</div><!-- .slide -->
<div id="s4" class="slide">
<div class="shead">Slide Title 4</div>
<div class="sbody">Thank you for taking this survey</div>
</div><!-- .slide -->
</div><!-- .row -->
</div><!-- .container -->
JS:
var cnt=1;
$(function(){
$('body').css({'background':'wheat'});
$('#s'+cnt).css({'margin-left':0});
$('button').click(function(){
$('#s'+cnt).animate({
marginRight:'100%'
},500);
cnt++;
$('#s'+cnt).animate({
marginLeft:'0%'
},500,function(){
//reset slide position, in case you wish to add a "Go Back one slide" btn
$('#s'+cnt-1).css({'margin-left':'100%'});
});
});
});//END document.ready
CSS:
html,body{height:500px;width:100%;overflow:hidden;}
div{position:relative;}
.row{height:400px;width:100%;}
.slide{position:absolute;top:0;margin-left:100%;height:100%;width:100%;padding:20px;}
.shead{height:50px;width:100%;color:#aaa;background:#222;}
.sbody{height:300px;width:100%;padding:20px;}
.sfoot{height:50px;width:100%;}
.sfoot button{padding:12px 20px;background:darksteelgrey;color:#888;}
#s1{color:white;background:darkcyan;}
#s2{color:yellow;background:red;}
#s3{color:#333;background:palegreen;}
#s4{color:yellow;background:blue;font-size:2rem;}

Bootstrap carousel how to hide one item from slider on xs size?

How I can hide one or two items from the bootstrap-carousel only on xs-size ?
When I added class 'hidden-xs' to this item in carousel and item div looks like:
<div class="item hidden-xs">
<img src="imgTop2.jpg" alt="...">
</div>
All the items and the carousel disappeared.
The same problem exist when i add 'hidden-xs' class to img element for this item.
How can I fix that ? I want to hide on xs only one or two slides. Others must by visible.
My code looks like:
<div id="carousel-top" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="hidden carousel-indicators" style="display:none">
<li data-target="#carousel-top" data-slide-to="0" class="active"></li>
<li class="" data-target="#carousel-top" data-slide-to="1"></li>
<li class="" data-target="#carousel-top" data-slide-to="2"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="imgTop.jpg" alt="...">
</div>
<div class="item">
<img src="imgTop2.jpg" alt="...">
</div>
<div class="item">
<img src="imgTop3.jpg" alt="...">
</div>
<div class="item">
<img src="imgTop4.jpg" alt="...">
</div>
<div class="item">
<img src="imgTop5.jpg" alt="...">
</div>
</div>
<!-- Controls -->
<a class="hidden left carousel-control" href="#carousel-top" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="hidden right carousel-control" href="#carousel-top" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>

I can't think of a way to do it just with bootstrap helper classes, because the carousel script depends on the .item class. But you could use the following jQuery:
if ($(window).width() < 960) {
$('#carousel-top .hide-on-mobile').removeClass('item').addClass('hide');
}
You just have to add the class .hide-on-mobile to the items you want to hide on mobile devices.
Working Example

Expanding on Sebsemillia's approach, you can achieve this conditional logic actively on the window resize event. The only catch is that if the element has class "active", you must also remove this class and add it to another slide without the .hide-on-mobile class. See here, using class .no-mobile --
$(function(){
var $window = $(window);
function deviceWidth() {
return $window.width();
}
function toggleMobileSlideVisibility(show_hide) {
$no_mobile_slides = $('.carousel-inner').find('.no-mobile');
if (show_hide === 'hide'){
var reset_active_slide = false;
$no_mobile_slides.each(function(i, e){
if ($(e).hasClass('active')) {
reset_active_slide = true;
$(e).removeClass('active');
}
});
$no_mobile_slides.removeClass('item').addClass('hide');
if (reset_active_slide) {
$('.carousel-inner').find('.item').first().addClass('active');
}
} else if (show_hide === 'show') {
$no_mobile_slides.addClass('item').removeClass('hide');
}
}
var is_mobile_device = false;
var detectMobile = function detectMobile(){
if (deviceWidth() > 978) {
if (is_mobile_device) { toggleMobileSlideVisibility('show'); }
is_mobile_device = false;
} else {
if (!is_mobile_device) { toggleMobileSlideVisibility('hide'); }
is_mobile_device = true;
}
}
$(window).on('resize', function(){
detectMobile();
});
detectMobile();
});
<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/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<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>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="https://unsplash.it/1920/600/?random&img=2" alt="random">
<div class="carousel-caption">
Just A Slide
</div>
</div>
<div class="item no-mobile">
<img src="https://unsplash.it/1920/600/?random&img=3" alt="random-no-mobile">
<div class="carousel-caption">
A Slide That Should Hide On Mobile
</div>
</div>
<div class="item">
<img src="https://unsplash.it/1920/600/?random&img=4" alt="random2">
<div class="carousel-caption">
Just Another Slide
</div>
</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>

Or you can use CSS media query to hide the items you choose on mobile:
#media screen and (max-device-width: 800px) {
.slide-hide-on-mobile { display: none; }
}
You just need to add class="slide-hide-on-mobile" to the items you want to hide:
<div class="item active slide-hide-on-mobile">
<img src="imgTop.jpg" alt="...">
</div>