method Interface.prototype.question
Usage in Deno
import { Interface } from "node:readline/promises";
Interface.prototype.question(query: string): Promise<string>
The rl.question()
method displays the query
by writing it to the output
,
waits for user input to be provided on input
, then invokes the callback
function passing the provided input as the first argument.
When called, rl.question()
will resume the input
stream if it has been
paused.
If the Interface
was created with output
set to null
or undefined
the query
is not written.
If the question is called after rl.close()
, it returns a rejected promise.
Example usage:
const answer = await rl.question('What is your favorite food? ');
console.log(`Oh, so your favorite food is ${answer}`);
Using an AbortSignal
to cancel a question.
const signal = AbortSignal.timeout(10_000);
signal.addEventListener('abort', () => {
console.log('The food question timed out');
}, { once: true });
const answer = await rl.question('What is your favorite food? ', { signal });
console.log(`Oh, so your favorite food is ${answer}`);
Promise<string>
A promise that is fulfilled with the user's input in response to the query
.