rl.question(query[, options], callback)

• query <string> 要写入 output 的语句或查询，位于提示之前。

  ¥query <string> A statement or query to write to output, prepended to the prompt.

• options <Object>

  • signal <AbortSignal> 可选择允许使用 AbortController 取消 question()。

    ¥signal <AbortSignal> Optionally allows the question() to be canceled using an AbortController.

• callback <Function> 使用用户输入调用的回调函数以响应 query。

  ¥callback <Function> A callback function that is invoked with the user's input in response to the query.

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。

¥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.

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

¥When called, rl.question() will resume the input stream if it has been paused.

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

¥If the readline.Interface was created with output set to null or undefined the query is not written.

传给 rl.question() 的 callback 函数不遵循接受 Error 对象或 null 作为第一个参数的典型模式。以提供的答案作为唯一参数调用 callback。

¥The callback function passed to rl.question() does not follow the typical pattern of accepting an Error object or null as the first argument. The callback is called with the provided answer as the only argument.

在 rl.close() 之后调用 rl.question() 会报错。

¥An error will be thrown if calling rl.question() after rl.close().

用法示例：

¥Example usage:

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

使用 AbortController 取消问题。

¥Using an AbortController to cancel a question.

const ac = new AbortController();
const signal = ac.signal;

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

signal.addEventListener('abort', () => {
  console.log('The food question timed out');
}, { once: true });

setTimeout(() => ac.abort(), 10000); 拷贝