Website Sliders Without jQuery

Website sliders are a popular and effective way to showcase important content, such as featured products, promotions, and testimonials, on a website. While many sliders are built using the popular JavaScript library jQuery, there are alternative methods for building sliders that don’t rely on this library. In this article, we’ll explore why you might want to build a slider without jQuery, and how you can do it using only HTML, CSS, and JavaScript.

Why Avoid jQuery for Sliders?

There are several reasons why a website owner or developer might want to build a slider without using jQuery. One of the biggest reasons is page speed. A website that uses jQuery can become slow and bloated if the library is not optimized properly. Additionally, some website visitors may have older computers or slow internet connections, which can make a website that uses jQuery take longer to load. By avoiding jQuery and relying on HTML, CSS, and JavaScript, you can create a slider that is lightweight and fast.

Building a Slider Without jQuery

There are several ways to build a slider without jQuery, but we’ll focus on one method that is simple and easy to understand. To build our slider, we’ll use a combination of HTML, CSS, and JavaScript. The HTML will define the structure and content of the slider, the CSS will provide the styling, and the JavaScript will control the behavior.

The HTML for our slider will consist of a container element, such as a div, and a series of child elements, such as img elements, for each slide. Here is an example of what the HTML for our slider might look like:

<div id="slider">
	<img src="slide1.jpg" alt="Slide 1">
	<img src="slide2.jpg" alt="Slide 2">
	<img src="slide3.jpg" alt="Slide 3">
</div>
Language:html

Next, we’ll use CSS to style the slider and position the slides. We’ll set the height and width of the slider container, and use absolute positioning to place the slides one on top of the other. Here is an example of what the CSS for our slider might look like:

#slider {
	height: 500px;
	width: 800px;
	position: relative;
	overflow: hidden;
}
#slider img {
	height: 100%;
	width: 100%;
	position: absolute;
	top: 0;
	left: 0;
	opacity: 0;
	transition: opacity 1s ease-in-out;
}
#slider img:first-of-type {
	opacity: 1;
}
Language:css

Finally, we’ll use JavaScript to control the behavior of the slider. We’ll write a function that cycles through the slides and updates the opacity of each slide to create the appearance of sliding. Here is an example of what the JavaScript for our slider might look like:

var slides = document.querySelectorAll('#slider img');
var currentSlide = 0;function nextSlide() {
	slides[currentSlide].style.opacity = 0;
	currentSlide = (currentSlide + 1) % slides.length;
	slides[currentSlide].style.opacity = 1;
}
setInterval(nextSlide, 3000);
Language:JavaScript

This is just one example of how you can build a slider without jQuery. With a little creativity and a solid understanding of HTML