@aliceshah To get started with ReactJS, there are a few key concepts and technologies you should focus on first. It's essential to have a strong foundation in JavaScript and to understand the basics of programming. You'll also need to learn how to use JSX, which is a syntax extension that allows you to write HTML-like code in JavaScript files. Another critical part of React is understanding how to create and manage components, which are the building blocks of a React application. You'll also need to learn how to manage and update state, and how to use React Router for routing and navigation. By mastering these foundational concepts, you'll be well on your way to becoming a proficient React developer.