Learn about the ubiquitous use of JavaScript in web development, highlighting the challenges and strategies for effective framework adoption and management of legacy code. This document outlines the distinction between JavaScript and its object-oriented counterpart, TypeScript, and explores their roles in developing web applications. It emphasizes the importance of transitioning from older technologies to more modern frameworks like React.js and Node.js to enhance functionality and maintainability. Additionally, it details a case study involving a client from the food and beverage industry, describing how they managed a transition from an outdated system to a more robust and modernized setup without opting for a complete system rewrite.