Learning Web Design Website: A Practical Guide To Creating Engaging Websites With Html, Css, Javascript And Web Graphics by Ashford Declan

Author:Ashford, Declan
Language: eng
Format: epub
Published: 2024-08-27T00:00:00+00:00

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<img src="image.jpg" alt="Description" loading="lazy">

JavaScript Libraries: Use JavaScript libraries such as lazysizes or Intersection Observer API to implement lazy loading for images, videos, and iframes.

javascript

const images = document.querySelectorAll('img[data-src]');

const options = {

root: null,

rootMargin: '0px',

threshold: 0.1

};

const observer = new IntersectionObserver((entries, observer) => {

entries.forEach(entry => {

if (entry.isIntersecting) {

const img = entry.target;

img.src = img.dataset.src; // Load the image

observer.unobserve(img); // Stop observing the image

}

});

}, options);

images.forEach(image => {

observer.observe(image);

});

Plugins for CMS: If you are using a content management system (CMS) like WordPress, consider using plugins that automatically implement lazy loading for images and other media.

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