#technical **What is TDD (Test-Driven Development)?** Test-Driven Development (TDD) is a method of writing software where you write tests before writing the actual code. You go through a loop: write a test, run it (it fails), write just enough code to make the test pass, and then improve the code without breaking the tests. **Why Use TDD?** 1. **Better Code Quality**: TDD encourages careful design and creates code that’s easier to maintain and update. 2. **Easier Refactoring**: Since tests come first, TDD makes it safe to change code, as tests will alert you if something breaks. 3. **Clear Documentation**: The tests act as a guide, showing what each part of the code should do. 4. **Fewer Bugs**: TDD helps catch errors early, reducing issues later. 5. **Fits Agile Development**: TDD supports Agile by making the code flexible and easy to adjust as requirements change. **How to Implement TDD?** 1. **Write a Test**: Write a test for the feature you want. It will fail initially. 2. **Make it Pass**: Write just enough code to pass the test. 3. **Refactor**: Improve the code while keeping tests passing. 4. **Repeat**: Keep adding new tests, make them pass, and refactor. TDD is more than a technique—it’s a shift in how you approach code, keeping testing and design in focus throughout development.