Front-End Development Development Tutorials, Guides & Insights

JavaScript plays a pivotal role in shaping the dynamic and interactive experiences we enjoy on the web today. Here's a deeper dive into its significance:

JavaScript is the engine behind the dynamic behavior of modern websites. It works alongside HTML (structure) and CSS (style) to create a complete web experience.

Accessibility is crucial when building web components. We can improve the accessibility of our dropdown menu by adding `aria` attributes and handling keyboard interactions.

We’ll add `aria-haspopup` and `aria-expanded` attributes to the dropdown toggle.

Let's start by setting up a new React project.

npx create-react-app my-component-library
cd my-component-library

• Web3.js: A JavaScript library for interacting with the Ethereum blockchain.
• contract.methods.setMessage(message).send({ from: accounts[0] }): Calls the smart contract’s setMessage function and sends a transaction to the blockchain.
• contract.methods.getMessage().call(): Calls the smart contract’s getMessage function to retrieve the stored message.

To interact with the Ethereum network, you need to connect MetaMask to your DApp.

• Slightly steeper learning curve due to flexibility.
• Somewhat smaller community compared to Styled Components.

JSS is an authoring tool that allows you to use JavaScript to describe styles programmatically.