How to Write DRY Code in Node.js Using Helpers As developers, one of the most important principles we should follow is DRY: Don't Repeat Yourself . Repetition makes code harder to maintain and debug. In this post, you'll learn how to write cleaner, reusable, and DRY code in Node.js using helper functions. 💡 What is DRY Code? DRY code means reducing repetition in your codebase. Instead of copying and pasting the same logic multiple times, you extract that logic into a function (or helper), then reuse it wherever needed. 🛠️ What are Helpers in Node.js? Helpers are utility functions that handle repetitive tasks like formatting, validation, date conversions, logging, etc. These are usually stored in a separate file (like helpers.js ) to keep the main code clean. 📁 Example Project Structure project/ ├── helpers/ │ └── stringHelper.js ├── routes/ │ └── userRoutes.js ├── app.js ✍️ Example: Creating a Helper ...