Q26: How does the readline module handle streaming line-by-line file input?
The readline module reads input streams line-by-line without buffering entire files into memory. By pairing readline.createInterface() with a readable file stream (fs.createReadStream()), applications process massive log files line-by-line via for await (const line of rl) iterations with minimal memory footprints.
Key Takeaways
readlineprocesses text input line-by-line efficiently.- Ideal for parsing large log files streamingly without loading full files into memory.
Knowledge Check
Which method constructs a readline interface attached to standard or file input streams?