Pure JS slider code
Before We Start
A slider is one of the main components of a website, It contain pictures and a user interface element within a website. The most important one and the first section that the user sees when he/she enters a website. simple pure JavaScript image slider
How to create Simple Pure JS slider code . So if you are a person who wishes to develop a website, you have to know how to create a slider properly.
Pure JS slider code
We are here to solve your problem. In this article we discuss how to create a slider. Before we start please read the below articles which easier you to understand the process, if you are new to development.
Step 1 – Add HTML
It’s too easy and simple. Just copy and paste below code in your HTML editor between <body> </body> tag.
<body>
<div id="slideshow">
<div class="control">
<button id="previous"><</button>
<button id="next">></button>
</div>
<ul id="slides">
<li class="slideActive">Slider 1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
</ul>
<div class="pager">
<ul>
<li id="first">Slider 1</li>
<li id="second">Slider 2</li>
<li id="third">Slider 3</li>
<li id="fourth">Slider 4</li>
<li id="fifth">Slider 5</li>
<li id="sixth">Slider 6</li>
</ul>
</div>
<div class="progressbar">
<div class="full">
<div class="progress"></div>
</div>
</div>
</div>
</body>
Step 2 – Add CSS
Copy and paste below code in your HTML editor between <style></style> tag.
<style>
#slideshow {
line-height: 1;
font-family: Consolas, "Andale Mono", "Lucida Console",
"Lucida Sans Typewriter", Monaco, "Courier New", monospace;
position: relative;
height: 100vh;
width: 100vw;
}
.control {
width: 100%;
height: calc(100% - 36px);
position: absolute;
top: 36px;
margin: 0;
z-index: 99;
display: block;
}
.control > button {
width: 16.7%;
height: calc(100% - 36px);
opacity: 1;
color: #212121;
background-color: transparent;
border: 0;
cursor: pointer;
font-size: 50vh;
}
#previous {
float: left;
}
#next {
float: right;
}
#slides {
padding: 0;
margin: 0;
background: #000;
overflow: hidden;
}
#slides > li {
position: absolute;
clear: both;
top: 0;
left: 0;
right: 0;
bottom: 0;
width: 100%;
height: 100%;
margin: 0 auto;
overflow: hidden;
opacity: 0;
overflow: hidden;
font-size: 10vh;
line-height: 100vh;
text-align: center;
color: #212121;
}
#slides li:first-child {
background: #f44336;
}
#slides li:nth-child(2) {
background: #e91e63;
}
#slides li:nth-child(3) {
background: #9c27b0;
}
#slides li:nth-child(4) {
background: #673ab7;
}
#slides li:nth-child(5) {
background: #3f51b5;
}
#slides li:last-child {
background: #2196f3;
}
#slides li.slideActive {
z-index: 2;
opacity: 1;
transition: 1s;
}
#first {
background: #f44336;
}
#second {
background: #e91e63;
}
#third {
background: #9c27b0;
}
#fourth {
background: #673ab7;
}
#fifth {
background: #3f51b5;
}
#sixth {
background: #2196f3;
}
.pager ul {
display: table;
width: 100%;
position: absolute;
z-index: 999;
}
.pager ul li {
display: table-cell;
line-height: 36px;
text-align: center;
color: #fff;
text-decoration: none;
cursor: pointer;
}
.progressbar {
position: absolute;
bottom: 0;
width: 100%;
height: 36px;
background: none;
z-index: 3;
}
.progress {
width: 0;
height: 36px;
-webkit-animation: progress 10s infinite;
background: #ffeb3b;
}
@-webkit-keyframes progress {
0% {
width: 0%;
}
100% {
width: 100%;
}
}
</style>
Step 2 – Add JavaScript
Copy and paste below code in your HTML editor between <script></script> tag.
<script>
var slide = 0,
slides = document.querySelectorAll("#slides > li"),
numSlides = slides.length,
//Functions!!
currentSlide = function () {
var itemToShow = Math.abs(slide % numSlides);
[].forEach.call(slides, function (el) {
el.classList.remove("slideActive");
});
slides[itemToShow].classList.add("slideActive");
resetProgress();
resetInterval();
},
next = function () {
slide++;
currentSlide();
},
prev = function () {
slide--;
currentSlide();
},
resetProgress = function () {
var elm = document.querySelector(".progressbar"),
newone = elm.cloneNode(true),
x = elm.parentNode.replaceChild(newone, elm);
},
resetslide = function () {
var elm = document.querySelector("#slides > li"),
newone = elm.cloneNode(true),
x = elm.parentNode.replaceChild(newone, elm);
},
resetInterval = function () {
clearInterval(autonext);
autonext = setInterval(function () {
slide++;
currentSlide();
}, 10000);
},
autonext = setInterval(function () {
next();
}, 10000);
//Buttons
document.querySelector("#first").addEventListener(
"click",
function () {
slide = 0;
currentSlide();
},
false
);
document.querySelector("#second").addEventListener(
"click",
function () {
slide = 1;
currentSlide();
},
false
);
document.querySelector("#third").addEventListener(
"click",
function () {
slide = 2;
currentSlide();
},
false
);
document.querySelector("#fourth").addEventListener(
"click",
function () {
slide = 3;
currentSlide();
},
false
);
document.querySelector("#fifth").addEventListener(
"click",
function () {
slide = 4;
currentSlide();
},
false
);
document.querySelector("#sixth").addEventListener(
"click",
function () {
slide = 5;
currentSlide();
},
false
);
document.querySelector("#next").addEventListener(
"click",
function () {
next();
},
false
);
document.querySelector("#previous").addEventListener(
"click",
function () {
prev();
},
false
);
</script>
At the end we will have something like this. You can change fonts, colors, backgrounds and all things that you want. Enjoy it.
Video Tutorial
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