Mastering React's Dependency Array

A quick tip for cleaning up your React useEffect warnings: If you define a helper function inside your component and call it within useEffect, ESLint will insist you include that function in the dependency array. While you *could* ignore it, a better pattern is to wrap that function definition in useCallback. This tells React the function reference only changes when its own dependencies change, preventing unnecessary re-runs of your effect and keeping your component performant and predictable. It’s a key step toward stable hook usage.