![]() We then set the filename of the download and click the link. This code creates a temporary link element and sets its href property to a data URL of the canvas exported as a PNG. All of the templates are exported as an array from js/meme-templates.js: Fabric will use this information to render the template on the canvas. Each template is a JavaScript object that contains metadata about the meme, such as the background image and text fields. When our meme generator is loaded and when we select a template, we will render a template on the canvas. ( placeholder.jpg is not needed you can safely delete this image.) I'll leave it up to you to download the images and place them in img with the filenames listed below: This directory will contain all of the meme background images for our templates. When a template selector button is clicked, we'll apply this class to the button to indicate the currently selected template. The styles for this project are pretty simple, but I do want to point out the. We'll add an event listener to the so that our templates can be downloaded, and the element is where we'll render our templates. The with the template-selectors ID is where the template selector buttons––the buttons that allow you to switch templates––will be rendered by our JavaScript. This is our simple HTML file for the project. ![]() You can simply open index.html and hit alt+L on Windows or cmd+L on macOS to start a local development server, and the server will automatically reload whenever a change in the project has been made. I recommend using VS Code as your text editor with the Live Server extension when working through this tutorial. For instance, this is how we could create a rectangle using the native API:Įnter fullscreen mode Exit fullscreen mode One benefit of Fabric is its object model for interacting with canvas elements. ![]() Our meme generator will use Fabric to render the template images and text fields on the canvas, and to export it to an image that we can download. This tutorial will introduce Fabric.js (Fabric), which is one of the many libraries that make working with the Canvas API easier. However, the Canvas API is low-level and can be difficult to work with. The HTML element and Canvas API allow us to draw graphics in the browser with JavaScript. I would recommend giving the MDN Canvas API docs a glance before continuing. Having some knowledge of the element and the Canvas API is helpful but not required. This is a JavaScript-focused tutorial you should have experience with: Here's what it looks like in action:Īt the end of this tutorial, I'll give you some ways that you can extend this project and make it your own. Users will be able to select one of the templates, edit and move the text fields, then download their creation. Memes are great: We can use them for humor, cryptocurrency, and even for learning JavaScript! In this tutorial, I'll show you how to make a meme generator with JavaScript and Fabric.js that lets you customize templates from three popular memes: Doge, Daily Struggle, and Philosoraptor.
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