Deleting directories in Node.js enables cleanup operations, temporary folder management, and automated file system maintenance through built-in filesystem module methods. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented directory deletion in countless Node.js applications for build cleanup, temporary file management, and automated maintenance scripts. From my expertise, the most effective approach is using fs.rm() with recursive options for modern Node.js or fs.rmdir() for older versions with proper error handling. This method provides safe directory removal with comprehensive error management and support for nested directory structures.