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app.js
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app.js
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const imageContainer = document.getElementById('image-container');
const loader = document.getElementById('loader');
let ready = false;
let imagesLoaded = 0;
let totalImages = 0;
let photosArray = [];
// Unsplash API
let count = 30;
const apiKEY = 'SxWThcDKZoWgFmjeAK9RrKaM5PgMcw28um3u0_9X9Q0'; // please use your own API
let apiURL = `https://api.unsplash.com/photos/random/?client_id=${apiKEY}&count=${count}`;
function imageLoaded() {
imagesLoaded++;
if (imagesLoaded === totalImages) {
ready = true;
loader.hidden = true;
}
}
function setAttributes(element, attributes) {
for (const key in attributes) {
element.setAttribute(key, attributes[key]);
}
}
function displayPhotos() {
imagesLoaded = 0;
totalImages = photosArray.length;
photosArray.forEach(photo => {
const item = document.createElement('a');
setAttributes(item, {
href: photo.links.html,
target: '_blank',
});
// create <img> for photo
const img = document.createElement('img');
setAttributes(img, {
src: photo.urls.regular,
alt: photo.alt_description,
title: photo.alt_description,
});
img.addEventListener('load', imageLoaded);
item.appendChild(img);
imageContainer.appendChild(item);
});
}
async function getPhotos() {
try {
const response = await fetch(apiURL);
photosArray = await response.json();
displayPhotos();
} catch (error) {}
}
window.addEventListener('scroll', () => {
if (window.innerHeight + window.scrollY >= document.body.offsetHeight - 1000 && ready) {
getPhotos();
ready = false;
}
});
getPhotos();