Develop Reference

Javascript - how to trigger a "if" condition by a change through CSS

I'm being tormented in the past 4 hours to find out how to do this, I don't know what I'm doing wrong, I have a page with multiple layers, I wish to trigger some transition when the needed page has opacity 1, it should be simple when u think of it, here is my code, please help ;)
slide1 = document.querySelector('.slide1');
function videoPlay() {
var videoOne = document.getElementById('myVideo');
if ((slide1.style.opacity) > 0 ) {
videoOne.play();
}
}
videoPlay();
.slide {
width: 100%;
background-size: cover;
background-position: center;
position: absolute;
}
.slide1 {
width: 100%;
background: none;
opacity: 0;
}
<div class="slide slide1">
<div class="slide-content">
<div class="secondColumn">
<video muted id="myVideo">
<source src="Media/Acqua.mp4" type="video/mp4">
</video>
<div class="lowerTab"></div>
</div>
</div>
here is the code which i use to change the opacity using the wheel :
//wheel event
document.addEventListener('wheel',
function scrollWheel(event) {
var fig =event.deltaY;
if (fig > 0) {
slideMove();
}
else if (fig<0) {
slideMovReverse();
}
})
//basic movement
function slideMove() {
if (current === sliderImages.length-1 ) {
current = -1
}
reset();
sliderImages[current+1].style.transition = "opacity 1s ease-in 0s";
sliderImages[current+1].style.opacity= "1.0";
current++;
}

You can use the transitionend event, but you'd have to set up the transition first. As it sits now, there's not much information in your question about the different slides, how the transitions are set up, etc. Here's a baseline to give you an idea:
const slide1 = document.querySelector('.slide1');
const videoEl = document.querySelector('.slide1__video');
const button = document.querySelector('button');
let inView = false;
slide1.addEventListener('transitionend', () => {
let content = 'Playing';
if (inView) {
content = ''
}
videoEl.textContent = content;
inView = !inView;
})
button.addEventListener('click', () => {
slide1.classList.toggle('active')
})
.slide1 {
transition: opacity 500ms linear;
opacity: 0;
border: 1px solid green;
padding: 10px;
margin-bottom: 24px
}
.slide1.active {
opacity: 1
}
<div class="slide1">
Slide 1
<div class="slide1__video"></div>
</div>
<button>Next</button>
Edit
It'll need some love but I think it's in the right direction to what you're after.
const slides = Array.from(document.querySelectorAll('.slide'));
document.addEventListener('wheel', onScroll);
const SCROLL_TOLERANCE = 100;
let currentIndex = 0;
let currentScroll = 0;
function onScroll(e) {
if (e.deltaY > 0) {
currentScroll += 1;
} else {
currentScroll -= 1;
}
if (currentScroll >= (currentIndex * SCROLL_TOLERANCE) + 15) {
showNext();
} else if (currentScroll <= (currentIndex * SCROLL_TOLERANCE) - 15) {
showPrevious();
}
}
function showNext() {
if (currentIndex === slides.length - 1) {
return console.warn('At the end.');
}
currentIndex += 1;
setSlide();
}
function showPrevious() {
if (currentIndex === 0) {
return console.warn('At the beginning.');
}
currentIndex -= 1;
setSlide();
}
function setSlide() {
let newOpacity = 0;
slides.forEach(slide => {
if (+slide.dataset.index === currentIndex) {
newOpacity = 1
} else {
newOpacity = 0;
}
slide.style.opacity = newOpacity;
slide.addEventListener('transitionend', () => {
console.log('Done transitioning!');
// Do things here when the transition is over.
})
});
}
html,
body {
padding: 0;
margin: 0;
font-family: sans-serif;
font-size: 18px
}
.slide {
border: 3px solid #efefef;
position: absolute;
display: flex;
align-items: center;
justify-content: center;
width: 100%;
height: 100%;
transition: all 500ms linear;
opacity: 0;
transition-delay: 250ms;
}
.slide.active {
opacity: 1;
}
<div class="slide active" data-index="0">
Slide 1
</div>
<div class="slide" data-index="1">
Slide 2
</div>
<div class="slide" data-index="2">
Slide 3
</div>
<div class="slide" data-index="3">
Slide 4
</div>

How to speed up fadein / fadeout

I'm using the following code to fadein/fadeout images every second which works fine but I would like to fade the images in and out every 1/2 second. I can change the setInterval to 500 but this simply causes a bit of a mess. I clearly need to redfine fadein and fadeout.
I have bootstrap loaded so I'm guessing the functions are defined within the bootstrap js but how do I respecify their timing?
var $els = $('div[id^=image]'),
i = 0,
len = $els.length;
var start = 1;
var end = 999999999999999;
jQuery(function () {
$els.slice(1).hide();
spin = setInterval(function () {
$els.eq(i).fadeOut(function () {
i = Math.floor(Math.random() * len);
$els.eq(i).fadeIn();
});
start = new Date().getTime();
if (start > end) {
clearInterval(spin);
}
}, 1000);
{% for m in myusers %}
if (i == {{ forloop.counter0 }}) { document.getElementById('name{{ forloop.counter0 }}').style.display = 'Block';}
{% endfor %}
});

Since you are using jQuery, why not use fadeOut/fadeIn or fadeToggle?
$(document).ready(function() {
setInterval(function() {
$('.a1, .a2').stop().fadeToggle(500);
}, 500);
});
.wrapper {
position: relative;
width: 100px;
height: 100px;
margin: 1px;
display: inline-block;
}
.a1,
.a2 {
position: absolute;
left: 0;
top: 0;
width: 100px;
height: 100px;
background-color: blue;
}
.a2 {
display: none;
background-color: red;
}
.wrapper2 .a1 {
display: none;
}
.wrapper2 .a2 {
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrapper">
<div class="a1"></div>
<div class="a2"></div>
</div>
<div class="wrapper wrapper2">
<div class="a1"></div>
<div class="a2"></div>
</div>

var box = document.getElementById('box');
function fadeOutIn(elem, speed ) {
if (!elem.style.opacity) {
elem.style.opacity = 1;
} // end if
var outInterval = setInterval(function() {
elem.style.opacity -= 0.02;
if (elem.style.opacity <= 0) {
clearInterval(outInterval);
var inInterval = setInterval(function() {
elem.style.opacity = Number(elem.style.opacity)+0.02;
if (elem.style.opacity >= 1)
clearInterval(inInterval);
}, speed/50 );
} // end if
}, speed/50 );
} // end fadeOut()
fadeOutIn(box, 2000 );
Hello please see my solution . It is your helpful or not.
Thanks.

Javascript Slider doesn't work correctly with transition end

I don't know why people's are not answering this question.I'm making a horizontal infinite loop slider. What approach i'm using is making a ul container which has 3 images, for example if there are 3 images then clone the first image and place it to the end of the slider, same with last image make clone and place it before the first image. So now total images are 5. Default slider translation always start from first image not from clone one. Here is an example. What i'm facing is, I want to reset the slider after slider comes to the last clone image with same continuous loop like a carousel slider. I try using addEventListener with the event name transitionend but that event doesn't perform correctly and showing unsatisfied behavior. Is there a way to fix this?
(function () {
var resetTranslation = "translate3d(-300px,0px,0px)";
var elm = document.querySelector('.Working');
elm.style.transform = resetTranslation;
var arr = document.querySelectorAll('.Working li');
var clonefirst,
clonelast,
width = 300;
index = 2;
clonefirst = arr[0].cloneNode(true);
clonelast = arr[arr.length - 1].cloneNode(true);
elm.insertBefore(clonelast, arr[0]);
arr[arr.length - 1].parentNode.insertBefore(clonefirst, arr[arr.length - 1].nextSibling);
//Update
arr = document.querySelectorAll('.Working li');
elm.style.transition = 'transform 1.5s ease';
setInterval(function () {
elm.style.transform = 'translate3d(-' + index * width + 'px,0px,0px)';
if (index == arr.length - 1) {
elm.addEventListener('transitionend', function () {
elm.style.transform = resetTranslation;
});
index = 1;
}
index++;
}, 4000)
})();
*{
box-sizing: border-box;
}
.wrapper{
position: relative;
overflow: hidden;
height: 320px;
width: 300px;
}
.Working{
list-style: none;
margin: 0;
padding: 0;
position: relative;
width: 3125%;
}
.Working li{
position: relative;
float: left;
}
img{
max-width: 100%;
display: block;
}
.SubContainer:after{
display: table;
clear: both;
content: "";
}
<div class="wrapper">
<ul class="SubContainer Working">
<li> <img class="" src="http://i.imgur.com/HqQb9V9.jpg" /></li>
<li><img class="" src="http://i.imgur.com/PMBBc07.jpg" /></li>
<li><img class="" src="http://i.imgur.com/GRrGSxe.jpg" /></li>
</ul>
</div>

I've messed around with your code to hack in a fix: https://jsfiddle.net/rap8o3q0/
The changed part:
var currentItem = 1;
setInterval(function () {
var getWidth = window.innerWidth;
if(len === currentItem){
i = 1;
currentItem = 1;
} else {
currentItem++;
i++;
}
var val = 'translate3d(-' + (i-1) * getWidth + 'px,0px,0px)';
UnorderedListElement.style.transform = val;
}, 3000);

Your transition end event is not immediately fire because last transition doesn't computed when last clone image appear. You can easily achieve this thing by using setTimeout function and pass number of milliseconds to wait, after that reset the translation. I don't know it's an efficient solution but i think its easily done by using this function.
Now I'm fixing your code with this.
(function () {
var elm = document.querySelector('.Working');
var arr = document.querySelectorAll('.Working li');
var clonefirst,
clonelast,
width = 300;
index = 2;
clonefirst = arr[0].cloneNode(true);
clonelast = arr[arr.length - 1].cloneNode(true);
elm.insertBefore(clonelast, arr[0]);
arr[arr.length - 1].parentNode.insertBefore(clonefirst, arr[arr.length - 1].nextSibling);
//Update
arr = document.querySelectorAll('.Working li');
setInterval(function () {
$(elm).css({
'transform': 'translate3d(-' + (index * width) + 'px,0px,0px)',
'transition': 'transform 1.5s ease'
});
if (index == arr.length - 1) {
setTimeout(function () {
$(elm).css({'transform': 'translate3d(-300px,0px,0px)', 'transition': 'none'});
index = 1;
}, 1400);
}
index++;
}, 2000)
})();
* {
box-sizing: border-box;
}
.wrapper {
position: relative;
overflow: hidden;
height: 320px;
width: 300px;
margin-top: 8px;
}
.Working {
list-style: none;
margin: 0;
padding: 0;
position: relative;
transform: translateX(-300px);
width: 3125%;
}
.Working li {
position: relative;
float: left;
}
img {
max-width: 100%;
display: block;
}
.SubContainer:after {
display: table;
clear: both;
content: "";
}
#checkboxer:checked + .wrapper {
overflow: visible;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="checkboxer">Remove Overflow Hidden</label>
<input type="checkbox" id="checkboxer" name="checkboxer"/>
<div class="wrapper">
<ul class="SubContainer Working">
<li> <img class="" src="http://i.imgur.com/HqQb9V9.jpg" /></li>
<li><img class="" src="http://i.imgur.com/PMBBc07.jpg" /></li>
<li><img class="" src="http://i.imgur.com/GRrGSxe.jpg" /></li>
</ul>
</div>

To come back your slider in its first position, you need to trigger a transition end event after the last (3th) translation, That works only one time.
$(UnorderedListElement).one("webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend", function ()
{
{
$(UnorderedListElement).css('transform', 'translate3d(0, 0, 0)');
}
});
But you need to make it to translate immediately. In link below you can see my slider that is very similar to yours, but works by absolute positioning and change the left property instead of transform.
Slider
Last thing: It is not a good idea to slide the hole of the image container. You must slide your images separately. In your way there is an obvious problem: When the page is sliding out the last image, there is not the next image to push it!

You can update your setInterval as
setInterval(function() {
var getWidth = window.innerWidth;
var val = 'translate3d(-' + i * getWidth + 'px,0px,0px)';
UnorderedListElement.style.transform = val;
i++;
if (i == 3) { //assuming three images here
i = 0
}
}, 3000)
var DomChanger;
(function() {
var listItem = document.querySelectorAll('.ah-slider li');
var len = listItem.length;
var getImage = document.querySelector('.ah-slider li img');
var UnorderedListElement = document.querySelector('.ah-slider');
var outerDiv = document.querySelector('.Slider');
UnorderedListElement.setAttribute('style', 'width:' + (len * 1000 + 215) + '%');
var i = 1;
DomChanger = function() {
for (var i = 0; i < len; ++i) {
listItem[i].setAttribute('style', 'width:' + window.innerWidth + 'px');
}
outerDiv.setAttribute('style', 'height:' + getImage.clientHeight + 'px');
};
setInterval(function() {
var getWidth = window.innerWidth;
var val = 'translate3d(-' + i * getWidth + 'px,0px,0px)';
UnorderedListElement.style.transform = val;
i++;
if (i == 3) {
i = 0
}
}, 3000)
})();
window.onload = function() {
DomChanger();
};
window.onresize = function() {
DomChanger();
};
* {
box-sizing: border-box;
}
html,
body {
margin: 0;
padding: 0;
background-color: #fff;
}
.Slider {
width: 100%;
margin: 50px 0 0;
position: relative;
overflow: hidden;
}
.ah-slider {
padding: 0;
margin: 0;
list-style: none;
position: relative;
transition: transform .5s ease;
}
.ah-slider li {
position: relative;
float: left;
}
.ah-slider li img {
max-width: 100%;
display: block;
}
.clearFix:after {
content: "";
display: table;
clear: both;
}
<div class="Slider">
<ul class="ah-slider clearFix">
<li>
<img class="" src="http://i.imgur.com/L9Zi1UR.jpg" title="" />
</li>
<li>
<img class="" src="http://i.imgur.com/FEcEwFs.jpg" title="" />
</li>
<li><img class="" src=http://i.imgur.com/hURSKNa.jpg" title="" /></li>
</ul>
</div>

Using Parallax with Image Slideshow

I'm trying to create a parallax effect with a simple slideshow that I made.
First, I have one with just the basic parallax.js implementation:
fiddle: https://jsfiddle.net/jzhang172/bcdkvqtq/1/
.parallax-window {
min-height: 400px;
position:relative;
}
.ok{
font-size:50px;
background:gray;
color:blue;
height:300px;
width:100%;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/parallax.js/1.4.2/parallax.min.js"></script>
<div class="parallax-window" data-parallax="scroll" data-image-src="http://vignette4.wikia.nocookie.net/pokemon/images/5/5f/025Pikachu_OS_anime_11.png/revision/latest?cb=20150717063951g">
</div>
<div class="ok">Hey there</div>
This works, however, now I want this effect on image slideshow, with or without parallax.js is fine but I would like the same parallax effect:
I'm not sure how to apply it to the images:
fiddle: https://jsfiddle.net/jzhang172/k4fygvhg/1/
$(document).ready(function() {
var slides = $('.featured-wrapper img');
var slideAtm = slides.length;
var currentPos = 0;
slides.hide();
function roll(){
var slide = slides.eq(currentPos);
slide.fadeIn(2000);
setTimeout(up,1500);
}
roll();
function up(){
currentPos +=1;
slides.fadeOut(1500);
setTimeout(roll, 500);
if(currentPos > slideAtm -1){
currentPos = 0;
}
}
});
.featured-wrapper img{
max-width:200%;
max-height:200%;
min-width:100vw;
}
.featured-wrapper{
height:500px;
width:100%;
overflow:hidden;
}
.things{
font-size:50px;
height:500px;
width:100%;
background:blue;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/parallax.js/1.4.2/parallax.min.js"></script>
<div class="featured-wrapper" data-parallax="scroll">
<img src="http://assets.pokemon.com/assets/cms2/img/pokedex/full//007.png" alt="">
<img src="http://assets.pokemon.com/assets/cms2/img/pokedex/full/001.png" alt="">
<img src="https://assets.pokemon.com/static2/_ui/img/account/sign-up.png" alt="">
<img src="http://static.giantbomb.com/uploads/scale_small/0/6087/2438704-1202149925_t.png" alt="">
<img src="http://static.giantbomb.com/uploads/scale_small/0/6087/2438704-1202149925_t.png" alt="">
</div>
<div class="things">I'm the stuff underneath</div>

My proposal is to preload the images and, using the complete events of fadeIn / fadeOut instead of setTimeOut.
I hope this could help you.
var imagesArray = ["http://assets.pokemon.com/assets/cms2/img/pokedex/full//007.png",
"http://assets.pokemon.com/assets/cms2/img/pokedex/full/001.png",
"https://assets.pokemon.com/static2/_ui/img/account/sign-up.png",
"http://static.giantbomb.com/uploads/scale_small/0/6087/2438704-1202149925_t.png",
"http://static.giantbomb.com/uploads/scale_small/0/6087/2438704-1202149925_t.png"];
function preloadImg(pictureUrls, callback) {
var i, j, loaded = 0;
var imagesArray = [];
for (i = 0, j = pictureUrls.length; i < j; i++) {
imagesArray.push(new Image());
}
for (i = 0, j = pictureUrls.length; i < j; i++) {
(function (img, src) {
img.onload = function () {
if (++loaded == pictureUrls.length && callback) {
callback(imagesArray);
}
};
img.src = src;
}(imagesArray[i], pictureUrls[i]));
}
};
function roll(imagesArray, currentPos, max){
if (max < 0) {
return;
}
var slide = $('.parallax-mirror').find('img').attr('src', imagesArray[currentPos].src);
slide.fadeIn(2000, function() {
slide.fadeOut(1500, function() {
currentPos++;
if(currentPos >= imagesArray.length){
currentPos = 0;
max--;
}
roll(imagesArray, currentPos, max);
});
});
}
$(function () {
preloadImg(imagesArray, function (imagesArray) {
roll(imagesArray, 0, 3);
});
});
.parallax-window {
min-height: 400px;
position:relative;
}
.ok {
font-size:50px;
background:gray;
color:blue;
height:500px;
width:100%;
}
<script src="https://code.jquery.com/jquery-1.12.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/parallax.js/1.4.2/parallax.min.js"></script>
<div class="parallax-window" data-parallax="scroll"
data-image-src="http://assets.pokemon.com/assets/cms2/img/pokedex/full//007.png">
</div>
<div class="ok">I'm the stuff underneath</div>

Parallax effects are easy to maintain if you conceptually boil them down to their basics. I've added 2 lines of code to your project which (hopefully) will provide you with the result you're after.
The code I added was
.featured-wrapper img{
z-index: -1;
position: fixed;
}
https://jsfiddle.net/simonstern/k4fygvhg/6/

Try this, Hope this Helps..:)
fiddle link https://jsfiddle.net/e05m68wd/1/
$(document).ready(function() {
var imgSrc = ["https://assets.pokemon.com/assets/cms2/img/pokedex/full//007.png", "https://assets.pokemon.com/assets/cms2/img/pokedex/full//001.png", "https://assets.pokemon.com/static2/_ui/img/account/sign-up.png"];
var counter = 1;
var duration = 2000;
var tTime = 300;
var v = setInterval(function() {
$('.parallax-mirror').animate({
'opacity': 0
}, {
duration: tTime,
complete: function() {
$(this).find('img').attr('src', imgSrc[counter]).end().animate({
'opacity': 1
}, tTime);
}
});
if (counter > imgSrc.length - 1) {
counter = 0
} else {
counter++
};
},
duration);
});
.featured-wrapper {
height: 500px;
width: 100%;
overflow: hidden;
}
.things {
font-size: 50px;
height: 500px;
width: 100%;
background: blue;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/parallax.js/1.4.2/parallax.min.js"></script>
<div class="featured-wrapper" data-parallax="scroll" data-image-src="http://assets.pokemon.com/assets/cms2/img/pokedex/full//007.png">
</div>
<div class="things">I'm the stuff underneath</div>

How to build simple jQuery image slider with sliding or opacity effect?

Some of us might not want to use ready plugins because of their high sizes and possibilty of creating conflicts with current javascript.
I was using light slider plugins before but when customer gives modular revise, it became really hard to manipulate. Then I aim to build mine for customising it easily. I believe sliders shouldn't be that complex to build from beginning.
What is a simple and clean way to build jQuery image slider?

Before inspecting examples, you should know two jQuery functions which i used most.
index() returns value is an integer indicating the position of the first element within the jQuery object relative to its sibling elements.
eq() selects of an element based on its position (index value).
Basicly i take selected trigger element's index value and match this value on images with eq method.
- FadeIn / FadeOut effect.
- Sliding effect.
- alternate Mousewheel response.
​html sample:
<ul class="images">
<li>
<img src="images/1.jpg" alt="1" />
</li>
<li>
<img src="images/2.jpg" alt="2" />
</li>
...
</ul>
<ul class="triggers">
<li>1</li>
<li>2</li>
...
</ul>
<span class="control prev">Prev</span>
<span class="control next">Next</span>
OPACITY EFFECT: jsFiddle.
css trick: overlapping images with position:absolute
ul.images { position:relative; }
ul.images li { position:absolute; }
jQuery:
var target;
var triggers = $('ul.triggers li');
var images = $('ul.images li');
var lastElem = triggers.length-1;
triggers.first().addClass('active');
images.hide().first().show();
function sliderResponse(target) {
images.fadeOut(300).eq(target).fadeIn(300);
triggers.removeClass('active').eq(target).addClass('active');
}
SLIDING EFFECT: jsFiddle.
css trick: with double wrapper and use child as mask
.mask { float:left; margin:40px; width:270px; height:266px; overflow:hidden; }
ul.images { position:relative; top:0px;left:0px; }
/* this width must be total of the images, it comes from jquery */
ul.images li { float:left; }
jQuery:
var target;
var triggers = $('ul.triggers li');
var images = $('ul.images li');
var lastElem = triggers.length-1;
var mask = $('.mask ul.images');
var imgWidth = images.width();
triggers.first().addClass('active');
mask.css('width', imgWidth*(lastElem+1) +'px');
function sliderResponse(target) {
mask.stop(true,false).animate({'left':'-'+ imgWidth*target +'px'},300);
triggers.removeClass('active').eq(target).addClass('active');
}
Common jQuery response for both slider:
( triggers + next/prev click and timing )
triggers.click(function() {
if ( !$(this).hasClass('active') ) {
target = $(this).index();
sliderResponse(target);
resetTiming();
}
});
$('.next').click(function() {
target = $('ul.triggers li.active').index();
target === lastElem ? target = 0 : target = target+1;
sliderResponse(target);
resetTiming();
});
$('.prev').click(function() {
target = $('ul.triggers li.active').index();
lastElem = triggers.length-1;
target === 0 ? target = lastElem : target = target-1;
sliderResponse(target);
resetTiming();
});
function sliderTiming() {
target = $('ul.triggers li.active').index();
target === lastElem ? target = 0 : target = target+1;
sliderResponse(target);
}
var timingRun = setInterval(function() { sliderTiming(); },5000);
function resetTiming() {
clearInterval(timingRun);
timingRun = setInterval(function() { sliderTiming(); },5000);
}

Here is a simple and easy to understand code for Creating image slideshow using JavaScript without using Jquery.
<script language="JavaScript">
var i = 0; var path = new Array();
// LIST OF IMAGES
path[0] = "image_1.gif";
path[1] = "image_2.gif";
path[2] = "image_3.gif";
function swapImage() { document.slide.src = path[i];
if(i < path.length - 1) i++;
else i = 0; setTimeout("swapImage()",3000);
} window.onload=swapImage;
</script>
<img height="200" name="slide" src="image_1.gif" width="400" />

I have recently created a solution with a gallery of images and a slider that apears when an image is clicked.
Take a look at the code here: GitHub Code
And a live example here: Code Example
var CreateGallery = function(parameters) {
var self = this;
this.galleryImages = [];
this.galleryImagesSrcs = [];
this.galleryImagesNum = 0;
this.counter;
this.galleryTitle = parameters.galleryTitle != undefined ? parameters.galleryTitle : 'Gallery image';
this.maxMobileWidth = parameters.maxMobileWidth != undefined ? parameters.maxMobileWidth : 768;
this.numMobileImg = parameters.numMobileImg != undefined ? parameters.numMobileImg : 2;
this.maxTabletWidth = parameters.maxTabletWidth != undefined ? parameters.maxTabletWidth : 1024;
this.numTabletImg = parameters.numTabletImg != undefined ? parameters.numTabletImg : 3;
this.addModalGallery = function(gallerySelf = self){
var $div = $(document.createElement('div')).attr({
'id': 'modal-gallery'
}).append($(document.createElement('div')).attr({
'class': 'header'
}).append($(document.createElement('button')).attr({
'class': 'close-button',
'type': 'button'
}).html('×')
).append($(document.createElement('h2')).text(gallerySelf.galleryTitle))
).append($(document.createElement('div')).attr({
'class': 'text-center'
}).append($(document.createElement('img')).attr({
'id': 'gallery-img'
})
).append($(document.createElement('button')).attr({
'class': 'prev-button',
'type': 'button'
}).html('◄')
).append($(document.createElement('button')).attr({
'class': 'next-button',
'type': 'button'
}).html('►')
)
);
parameters.element.after($div);
};
$(document).on('click', 'button.prev-button', {self: self}, function() {
var $currImg = self.counter >= 1 ? self.galleryImages[--self.counter] : self.galleryImages[self.counter];
var $currHash = self.galleryImagesSrcs[self.counter];
var $src = $currImg.src;
window.location.hash = $currHash;
$('img#gallery-img').attr('src', $src);
$('div#modal-gallery h2').text(self.galleryTitle + ' ' + (self.counter + 1));
});
$(document).on('click', 'button.next-button', {self: self}, function() {
var $currImg = self.counter < (self.galleryImagesNum - 1) ? self.galleryImages[++self.counter] : self.galleryImages[self.counter];
var $currHash = self.galleryImagesSrcs[self.counter];
var $src = $currImg.src;
window.location.hash = $currHash;
$('img#gallery-img').attr('src', $src);
$('div#modal-gallery h2').text(self.galleryTitle + ' ' + (self.counter + 1));
});
$(document).on('click', 'div#modal-gallery button.close-button', function() {
$('#modal-gallery').css('position', 'relative');
$('#modal-gallery').hide();
$('body').css('overflow', 'visible');
});
parameters.element.find('a').on('click', {self: self}, function(event) {
event.preventDefault();
$('#modal-gallery').css('position', 'fixed');
$('#modal-gallery').show();
$('body').css('overflow', 'hidden');
var $currHash = this.hash.substr(1);
self.counter = self.galleryImagesSrcs.indexOf($currHash);
var $src = $currHash;
window.location.hash = $currHash;
$('img#gallery-img').attr('src', $src);
$('div#modal-gallery h2').text(self.galleryTitle + ' ' + (self.counter + 1));
});
this.sizeGallery = function(gallerySelf = self) {
var $modalGallery = $(document).find("div#modal-gallery");
if($modalGallery.length <= 0) {
this.addModalGallery();
}
var $windowWidth = $(window).width();
var $parentWidth = parameters.element.width();
var $thumbnailHref = parameters.element.find('img:first').attr('src');
if($windowWidth < gallerySelf.maxMobileWidth) {
var percentMobile = Math.floor(100 / gallerySelf.numMobileImg);
var emMobile = 0;
var pxMobile = 2;
// var emMobile = gallerySelf.numMobileImg * 0.4;
// var pxMobile = gallerySelf.numMobileImg * 2;
parameters.element.find('img').css('width', 'calc('+percentMobile+'% - '+emMobile+'em - '+pxMobile+'px)');
} else if($windowWidth < gallerySelf.maxTabletWidth) {
var percentTablet = Math.floor(100 / gallerySelf.numTabletImg);
var emTablet = 0;
var pxTablet = 2;
// var emTablet = gallerySelf.numMobileImg * 0.4;
// var pxTablet = gallerySelf.numMobileImg * 2;
parameters.element.find('img').css('width', 'calc('+percentTablet+'% - '+emTablet+'em - '+pxTablet+'px)');
} else {
var $thumbImg = new Image();
$thumbImg.src = $thumbnailHref;
$thumbImg.onload = function() {
var $thumbnailWidth = this.width;
if($parentWidth > 0 && $thumbnailWidth > 0) {
parameters.element.find('img').css('width', (Math.ceil($thumbnailWidth * 100 / $parentWidth))+'%');
}
};
}
};
this.startGallery = function(gallerySelf = self) {
parameters.element.find('a').each(function(index, el) {
var $currHash = el.hash.substr(1);
var $img = new Image();
$img.src = $currHash;
gallerySelf.galleryImages.push($img);
gallerySelf.galleryImagesSrcs.push($currHash);
});
this.galleryImagesNum = this.galleryImages.length;
};
this.sizeGallery();
this.startGallery();
};
var myGallery;
$(window).on('load', function() {
myGallery = new CreateGallery({
element: $('#div-gallery'),
maxMobileWidth: 768,
numMobileImg: 2,
maxTabletWidth: 1024,
numTabletImg: 3
});
});
$(window).on('resize', function() {
myGallery.sizeGallery();
});
#div-gallery {
text-align: center;
}
#div-gallery img {
margin-right: auto;
margin-left: auto;
}
div#modal-gallery {
top: 0;
left: 0;
width: 100%;
max-width: none;
height: 100vh;
min-height: 100vh;
margin-left: 0;
border: 0;
border-radius: 0;
z-index: 1006;
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
display: none;
background-color: #fefefe;
position: relative;
margin-right: auto;
overflow-y: auto;
padding: 0;
}
div#modal-gallery div.header {
position: relative;
}
div#modal-gallery div.header h2 {
margin-left: 1rem;
}
div#modal-gallery div.header button.close-button {
position: absolute;
top: calc(50% - 1em);
right: 1rem;
}
div#modal-gallery img {
display: block;
max-width: 98%;
max-height: calc(100vh - 5em);
margin-right: auto;
margin-left: auto;
}
div#modal-gallery div.text-center {
position: relative;
}
button.close-button {
display: inline-block;
padding: 6px 12px;
margin-bottom: 0;
font-size: 20px;
font-weight: 400;
line-height: 1.42857143;
text-align: center;
white-space: nowrap;
vertical-align: middle;
-ms-touch-action: manipulation;
touch-action: manipulation;
cursor: pointer;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
background-image: none;
border: 1px solid transparent;
border-radius: 4px;
color: #333;
background-color: #fff;
border-color: #ccc;
}
button.close-button:hover, button.close-button:focus {
background-color: #ddd;
}
button.next-button:hover, button.prev-button:hover, button.next-button:focus, button.prev-button:focus {
color: #fff;
text-decoration: none;
filter: alpha(opacity=90);
outline: 0;
opacity: .9;
}
button.next-button, button.prev-button {
position: absolute;
top: 0;
bottom: 0;
left: 0;
width: 15%;
font-size: 20px;
color: #fff;
text-align: center;
text-shadow: 0 1px 2px rgba(0,0,0,.6);
background-color: rgba(0,0,0,0);
filter: alpha(opacity=50);
opacity: .5;
border: none;
}
button.next-button {
right: 0;
left: auto;
background-image: -webkit-linear-gradient(left,rgba(0,0,0,.0001) 0,rgba(0,0,0,.5) 100%);
background-image: -o-linear-gradient(left,rgba(0,0,0,.0001) 0,rgba(0,0,0,.5) 100%);
background-image: -webkit-gradient(linear,left top,right top,from(rgba(0,0,0,.0001)),to(rgba(0,0,0,.5)));
background-image: linear-gradient(to right,rgba(0,0,0,.0001) 0,rgba(0,0,0,.5) 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00000000', endColorstr='#80000000', GradientType=1);
background-repeat: repeat-x;
}
button.prev-button {
background-image: -webkit-linear-gradient(left,rgba(0,0,0,.5) 0,rgba(0,0,0,.0001) 100%);
background-image: -o-linear-gradient(left,rgba(0,0,0,.5) 0,rgba(0,0,0,.0001) 100%);
background-image: -webkit-gradient(linear,left top,right top,from(rgba(0,0,0,.5)),to(rgba(0,0,0,.0001)));
background-image: linear-gradient(to right,rgba(0,0,0,.5) 0,rgba(0,0,0,.0001) 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#80000000', endColorstr='#00000000', GradientType=1);
background-repeat: repeat-x;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="div-gallery">
<img src="http://placehold.it/300x300/ff0000/000000?text=Gallery+image+1" alt="">
<img src="http://placehold.it/300x300/ff4000/000000?text=Gallery+image+2" alt="">
<img src="http://placehold.it/300x300/ff8000/000000?text=Gallery+image+3" alt="">
<img src="http://placehold.it/300x300/ffbf00/000000?text=Gallery+image+4" alt="">
<img src="http://placehold.it/300x300/ffff00/000000?text=Gallery+image+5" alt="">
<img src="http://placehold.it/300x300/bfff00/000000?text=Gallery+image+6" alt="">
<img src="http://placehold.it/300x300/80ff00/000000?text=Gallery+image+7" alt="">
<img src="http://placehold.it/300x300/40ff00/000000?text=Gallery+image+8" alt="">
<img src="http://placehold.it/300x300/00ff00/000000?text=Gallery+image+9" alt="">
<img src="http://placehold.it/300x300/00ff40/000000?text=Gallery+image+10" alt="">
<img src="http://placehold.it/300x300/00ff80/000000?text=Gallery+image+11" alt="">
<img src="http://placehold.it/300x300/00ffbf/000000?text=Gallery+image+12" alt="">
<img src="http://placehold.it/300x300/00ffff/000000?text=Gallery+image+13" alt="">
<img src="http://placehold.it/300x300/00bfff/000000?text=Gallery+image+14" alt="">
<img src="http://placehold.it/300x300/0080ff/000000?text=Gallery+image+15" alt="">
<img src="http://placehold.it/300x300/0040ff/000000?text=Gallery+image+16" alt="">
</div>

Checkout this whole bunch of code to build simple jquery image slider. Copy and save this file to local machine and test it. You can modify it according to your requirement.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
var current_img = 1;
var i;
$(document).ready(function(){
var imgs = $("#image").find("img");
function show_img(){
for (i = 1; i < imgs.length+1; i++) {
if(i == current_img){
$(imgs[i-1]).show();
}else{
$(imgs[i-1]).hide()
}
}
}
$("#prev").click(function(){
if(current_img == 1){
current_img = imgs.length;
}else{
current_img = current_img - 1
}
show_img();
});
$("#next").click(function(){
if(current_img == imgs.length){
current_img = 1;
}else{
current_img = current_img + 1
}
show_img();
});
});
</script>
</head>
<body>
<div style="margin-top: 100px;"></div>
<div class="container">
<div class="col-sm-3">
<button type="button" id="prev" class="btn">Previous</button>
</div>
<div class="col-sm-6">
<div id="image">
<img src="https://www.w3schools.com/html/pulpitrock.jpg" alt="image1">
<img src="https://www.w3schools.com/cSS/img_forest.jpg" alt="image2" hidden="true" style="max-width: 500px;">
<img src="https://www.w3schools.com/html/img_chania.jpg" alt="image3" hidden="true">
</div>
</div>
<div class="col-sm-3">
<button type="button" id="next" class="btn">Next</button>
</div>
</div>
</body>
</html>

I have written a tutorial on creating a slideshow, The tutorial page
In case the link becomes invalid I have included the code in my answer below.
the html:
<div id="slideShow">
<div id="slideShowWindow">
<div class="slide">
<img src="”img1.png”/">
<div class="slideText">
<h2>The Slide Title</h2>
<p>This is the slide text</p>
</div> <!-- </slideText> -->
</div> <!-- </slide> repeat as many times as needed -->
</div> <!-- </slideShowWindow> -->
</div> <!-- </slideshow> -->
css:
img {
display: block;
width: 100%;
height: auto;
}
p{
background:none;
color:#ffffff;
}
#slideShow #slideShowWindow {
width: 650px;
height: 450px;
margin: 0;
padding: 0;
position: relative;
overflow:hidden;
margin-left: auto;
margin-right:auto;
}
#slideShow #slideShowWindow .slide {
margin: 0;
padding: 0;
width: 650px;
height: 450px;
float: left;
position: relative;
margin-left:auto;
margin-right: auto;
}
#slideshow #slideshowWindow .slide, .slideText {
position:absolute;
bottom:18px;
left:0;
width:100%;
height:auto;
margin:0;
padding:0;
color:#ffffff;
font-family:Myriad Pro, Arial, Helvetica, sans-serif;
}
.slideText {
background: rgba(128, 128, 128, 0.49);
}
#slideshow #slideshowWindow .slide .slideText h2,
#slideshow #slideshowWindow .slide .slideText p {
margin:10px;
padding:15px;
}
.slideNav {
display: block;
text-indent: -10000px;
position: absolute;
cursor: pointer;
}
#leftNav {
left: 0;
bottom: 0;
width: 48px;
height: 48px;
background-image: url("../Images/plus_add_minus.png");
background-repeat: no-repeat;
z-index: 10;
}
#rightNav {
right: 0;
bottom: 0;
width: 48px;
height: 48px;
background-image: url("../Images/plus_add_green.png");
background-repeat: no-repeat;
z-index: 10; }
jQuery:
$(document).ready(function () {
var currentPosition = 0;
var slideWidth = 650;
var slides = $('.slide');
var numberOfSlides = slides.length;
var slideShowInterval;
var speed = 3000;
//Assign a timer, so it will run periodically
slideShowInterval = setInterval(changePosition, speed);
slides.wrapAll('<div id="slidesHolder"></div>');
slides.css({ 'float': 'left' });
//set #slidesHolder width equal to the total width of all the slides
$('#slidesHolder').css('width', slideWidth * numberOfSlides);
$('#slideShowWindow')
.prepend('<span class="slideNav" id="leftNav">Move Left</span>')
.append('<span class="slideNav" id="rightNav">Move Right</span>');
manageNav(currentPosition);
//tell the buttons what to do when clicked
$('.slideNav').bind('click', function () {
//determine new position
currentPosition = ($(this).attr('id') === 'rightNav')
? currentPosition + 1 : currentPosition - 1;
//hide/show controls
manageNav(currentPosition);
clearInterval(slideShowInterval);
slideShowInterval = setInterval(changePosition, speed);
moveSlide();
});
function manageNav(position) {
//hide left arrow if position is first slide
if (position === 0) {
$('#leftNav').hide();
}
else {
$('#leftNav').show();
}
//hide right arrow is slide position is last slide
if (position === numberOfSlides - 1) {
$('#rightNav').hide();
}
else {
$('#rightNav').show();
}
}
//changePosition: this is called when the slide is moved by the timer and NOT when the next or previous buttons are clicked
function changePosition() {
if (currentPosition === numberOfSlides - 1) {
currentPosition = 0;
manageNav(currentPosition);
} else {
currentPosition++;
manageNav(currentPosition);
}
moveSlide();
}
//moveSlide: this function moves the slide
function moveSlide() {
$('#slidesHolder').animate({ 'marginLeft': slideWidth * (-currentPosition) });
}
});