Deleting files in Node.js enables cleanup operations, temporary file management, and file system maintenance through the built-in filesystem module methods. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented file deletion in countless Node.js applications for cleanup scripts, temporary file management, and data processing workflows. From my expertise, the most effective approach is using fs.unlink() with proper error handling and file existence validation. This method provides safe file deletion with comprehensive error management and validation checks.