Test-Driven Development (TDD) is a vital skill for every developer because it ensures higher code quality and reliability. By writing tests before the actual code, developers can catch bugs early, leading to faster development cycles and fewer issues down the line. What is TDD? It’s a methodology where tests are written for a feature before the code is implemented. This not only helps in maintaining clean code but also improves the overall structure of software, making it easier to refactor. TDD encourages better design decisions and ensures that new code meets the required specifications, making it an essential practice for anyone serious about improving their coding skills and efficiency.

This approach is widely used in agile environments to keep development efficient and bug-free, making TDD a must-learn for all developers aiming for excellence in their craft.