Today's websites have evolved into web apps that are highly interactive, intricate, and crucial in connecting customers to businesses, clients to projects, and products to people. Many frontend developers are leveraging TypeScript, a superset of JavaScript, which offers static typing, interfaces, and other constructs not present in standard JavaScript. This provides early error detection, improved code quality, enhanced tooling, readability, and maintainability. The choice between TypeScript and JavaScript depends on project size, team expertise, development speed, and factors like code maintainability, reduced errors, enhanced collaboration, refactoring, and tooling support. Larger projects and teams can benefit from TypeScript's static type checking and tooling advantages due to its ability to improve code quality, reduce documentation overhead, long-term maintenance, predictable behavior, and better onboarding. However, the transition from JavaScript to TypeScript requires effort and has a learning curve, but it's often a worthwhile investment for improved safety and utility features.