Core ModulesLesson 35Free preview

Readline Module

This lesson is part of Node.js · All levels

Summary

The readline module allows reading line by line inputs from streams such as stdin, terminals, or files. You can build an interactive prompt, a CLI menu, or read a large file per line without loading it all into memory. The module also provides events and methods to close the interface neatly.

Key points

Readline.createInterface creates an interface to read input
The event line is triggered every time a user presses Enter
Interface can be read from process.stdin or stream files
Use close() or event close to close the interface

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