node-file-extension (npm): file extension
Keywords: file|node|nodejs|extension|extname-filename|extname filename|ext|filename extname|filename-extname|extname-file|extname file|ext-file|ext file|ext file image|ext file-image|ext-file-image|extname file-image|extname-file-image|extname file image|base64-file-image|base64 file image|base64 file-image