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script.js
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script.js
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const imageContainer = document.getElementById("image-container");
const loader = document.getElementById("loader");
let photosArray = [];
let ready = false;
let totalImages = 0;
let imagesLoaded = 0;
// unsplash API
const count = 30;
const apiKey = 'G50tWoaKG5eSKMK-9CNMQIvTt29xDb8nfwJDSYyO6aQ';
const apiURL = `https://api.unsplash.com/photos/random/?client_id=${apiKey}&count=${count}`;
// Check if all images were loaded
function imageLoaded() {
imagesLoaded++;
if (imagesLoaded === totalImages) {
ready = true;
loader.hidden = true;
}
}
// Helper Function to Set Attributes on DOM Elements
function setAttributes(element, attributes) {
for (const key in attributes) {
element.setAttribute(key, attributes[key]);
}
}
// Create Elements for Links & Photos, Add to DOM
function displayPhotos() {
totalImages = photosArray.length;
imagesLoaded = 0;
photosArray.forEach((photo) => {
// create <a> element to link to Unsplash
let item = document.createElement("a");
setAttributes(item, {
"href": photo.links.html,
"target": "_blank"
});
// create <img> for photo
let img = document.createElement("img");
setAttributes(img, {
"src": photo.urls.regular,
"alt": photo.alt_description !== null ? photo.alt_description : "",
"title": photo.alt_description !== null ? photo.alt_description : ""
});
img.addEventListener("load", imageLoaded);
// put <img> inside <a>, then put <a> inside the imageContainer
item.appendChild(img);
imageContainer.appendChild(item);
});
}
// Get photos from Unsplash API
async function getPhotos() {
try {
const response = await fetch(apiURL);
photosArray = await response.json();
displayPhotos();
} catch (error) {
console.log(error);
}
}
// Check to ssee if scrolling near bottom of page, then load more photos
window.addEventListener("scroll", () => {
if (ready && window.innerHeight + window.scrollY >= document.body.offsetHeight - 1000) {
getPhotos();
ready = false;
}
});
getPhotos();