rl.question(query[, options])

• query <string> 要写入 output 的语句或查询，位于提示之前。
• options <Object>
  • signal <AbortSignal> 可选择允许使用 AbortSignal 取消 question()。
• 返回: <Promise> 使用用户响应 query 的输入履行的 promise。

rl.question() 方法通过将 query 写入 output 来显示 query，等待在 input 上提供用户输入，然后调用 callback 函数，将提供的输入作为第一个参数传入。

当调用时，如果 rl.question() 流已暂停，则 rl.question() 将恢复 input 流。

如果 readlinePromises.Interface 是在 output 设置为 null 或 undefined 的情况下创建的，则不会写入 query。

如果问题在 rl.close() 之后被调用，则它返回被拒绝的 promise。

用法示例：

const answer = await rl.question('What is your favorite food? ');
console.log(`Oh, so your favorite food is ${answer}`);

使用 AbortSignal 取消问题。

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}`);

• query <string> A statement or query to write to output, prepended to the prompt.
• options <Object>
  • signal <AbortSignal> Optionally allows the question() to be canceled using an AbortSignal.
• Returns: <Promise> A promise that is fulfilled with the user's input in response to the query.

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 readlinePromises.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}`);