Building a Vanilla JavaScript Framework

asierr.dev
4 min readMay 25, 2024

Have you ever wondered what it takes to build your own JavaScript framework? Today, we’re going to dive deep into the world of frameworks and create a simple, lightweight JavaScript framework from scratch. This will help you understand the core concepts behind popular frameworks like React, Vue, and Angular. So, let’s roll up our sleeves and get started!

Why Build Your Own Framework?

Before we dive into the code, let’s discuss why you might want to build your own framework:

  • Learning: Understanding the internals of a framework helps you become a better developer.
  • Customization: You can tailor the framework to meet specific needs.
  • Performance: A custom framework can be optimized for your particular use case, often resulting in better performance.

Setting Up Your Project

First things first, let’s set up our project structure. Create a new directory for your project and initialize it with a package.json file.

mkdir my-framework
cd my-framework
npm init -y

Next, create the following file structure:

my-framework/

├── src/
│ ├── index.js
│ ├── Component.js
│ ├── Router.js
│ └── Store.js
├── public/
│ └──…

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