TypeScript is increasingly popular among developers due to its ability to enhance the development process by catching errors and suggesting fixes before code execution, thereby minimizing runtime errors and bugs. This article outlines how to integrate TypeScript with React to create components that work in both TypeScript and JavaScript environments. A step-by-step guide is provided on setting up a React application using create-react-app with a TypeScript template, creating a reusable display component, and implementing routing with react-router. The component is designed to handle data about fictional characters and is validated using prop-types for JavaScript and interfaces for TypeScript, illustrating how TypeScript’s type checking enhances code reliability. The article emphasizes the benefits of TypeScript's type checking and offers a practical example to demonstrate its integration into existing JavaScript codebases. Additionally, it introduces LogRocket, a tool for monitoring user interactions in web and mobile applications, highlighting its compatibility with various frameworks and its ability to capture detailed user session data.