To get all the images present in the document or HTML, you can use the read-only property called images in the document object.
Let's say you have a HTML document with 3 image tags like this,
<body>
<img src="https://via.placeholder.com/150" alt="Placeholder image" />
<img src="https://via.placeholder.com/200" alt="Placeholder image" />
<img src="https://via.placeholder.com/250" alt="Placeholder image" />
</body>
Now let's get all the images in the HTML using the document.images property in JavaScript.
// get all the images from HTML document
const images = document.images;
The references to the images are returned as an HTMLcollection.
// get all the images from HTML document
const images = document.images;
console.dir(images);
To see working example see JSBin.
