You're working on a project and need to add a new feature. How would you approach it using TDD?

Implement the feature directly and then write tests to validate it
Skip testing for new features as they might not have a significant impact
Write a failing test for the new feature, implement the feature to pass the test, refactor if needed
Write tests after implementing the feature to ensure its correctness

The TDD (Test-Driven Development) approach involves writing a failing test first, then implementing the feature to make the test pass, and finally refactoring if necessary. This process helps ensure that the feature works as expected and catches regressions early.

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