The readlinePromises.createInterface() method creates a new readlinePromises.Interfaceinstance.

const readlinePromises = require('node:readline/promises');
const rl = readlinePromises.createInterface({
  input: process.stdin,
  output: process.stdout,
});

Once the readlinePromises.Interface instance is created, the most common case is to listen for the 'line' event:

rl.on('line', (line) => {
  console.log(`Received: ${line}`);
});

If terminal is true for this instance then the output stream will get the best compatibility if it defines an output.columns property and emits a 'resize' event on the output if or when the columns ever change (process.stdout does this automatically when it is a TTY).