How to make a javascript gallery

Learn how to create a JavaScript gallery with an example and code snippets.

Creating a Javascript Gallery

Creating a Javascript gallery is a great way to showcase images, videos or other content. By using Javascript, you can easily create a dynamic and interactive gallery with just a few lines of code.

The first step is to create the HTML for the gallery. We need a container element that will hold the gallery, and then an element for each item we want to show. In this example, we’ll create a simple gallery with three images:

<div id="gallery">
  <img src="image1.jpg">
  <img src="image2.jpg">
  <img src="image3.jpg">
</div>

Next, we need to write some Javascript code to make the gallery interactive. The first step is to select the gallery container element:

var gallery = document.getElementById("gallery");

Now that we have the gallery element, we can add an event listener to it. This will allow us to detect when the user clicks on any of the images. When this happens, we want to show the image in full size:

gallery.addEventListener("click", function(e) {
  // show the image in full size
});

We now need to write the code that will show the image in full size. We can use the event’s target property to get the element that was clicked on. We can then create an element to show the image, and add it to the page:

gallery.addEventListener("click", function(e) {
  // get the element that was clicked on
  var img = e.target;
  
  // create an element to show the full size image
  var fullSizeImg = document.createElement("img");
  fullSizeImg.src = img.src;
  
  // add the image to the page
  document.body.appendChild(fullSizeImg);
});

We now have a working Javascript gallery. When the user clicks on an image, it will be displayed in full size. We can improve the gallery by adding a close button and some CSS to style the full size image.