Created
August 29, 2017 18:08
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Slider using JS, HTML and CSS
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<div class="slider"> | |
<button id="previous-button">Previous</button> | |
<div class="item-container selected"></div> | |
<div class="item-container"></div> | |
<div class="item-container"></div> | |
<div class="item-container"></div> | |
<div class="item-container"></div> | |
<button id="next-button">Next</button> | |
</div> | |
</div> |
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var rightCounter = 0; | |
var elements = document.getElementsByClassName('item-container'); | |
var numberOfElements = elements.length; | |
var leftCounter = numberOfElements; | |
document.getElementById("next-button").addEventListener('click', function() { | |
rightCounter++; | |
if(rightCounter >= numberOfElements) { | |
rightCounter = 0; | |
} | |
var selectedElement = document.getElementsByClassName('item-container selected'); | |
if (selectedElement) { | |
console.log(selectedElement[0].classList, rightCounter) | |
selectedElement[0].classList.remove('selected'); | |
} | |
elements[rightCounter].classList.add('selected'); | |
}) | |
document.getElementById("previous-button").addEventListener('click', function() { | |
leftCounter--; | |
if(leftCounter < 0) { | |
leftCounter = numberOfElements - 1; | |
} | |
var selectedElement = document.getElementsByClassName('item-container selected'); | |
if (selectedElement) { | |
console.log(selectedElement[0].classList, leftCounter) | |
selectedElement[0].classList.remove('selected'); | |
} | |
elements[leftCounter].classList.add('selected'); | |
}) |
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.slider { | |
height: 100%; | |
padding: 0; | |
margin: 0; | |
display: flex; | |
align-items: center; | |
justify-content: center; | |
} | |
.item-container { | |
border: 1px solid blue; | |
border-radius: 50%; | |
margin: 2px; | |
width: 10px; | |
height: 10px; | |
} | |
.item-container.selected { | |
background-color: black; | |
} | |
button { | |
margin: 0px 5px 0px 5px; | |
} |
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