如何等待Node Stream API的on 'end‘事件？

const fs = require('fs');

// 创建一个可读流
const readStream = fs.createReadStream('large-file.txt');

// 监听 'data' 事件，处理数据块
readStream.on('data', (chunk) => {
  console.log(`Received ${chunk.length} bytes of data.`);
});

// 监听 'end' 事件，表示数据已全部读取
readStream.on('end', () => {
  console.log('Finished reading the file.');
  // 在这里执行后续操作
});

// 监听 'error' 事件，处理可能出现的错误
readStream.on('error', (err) => {
  console.error(`An error occurred: ${err.message}`);
});

const fs = require('fs');

const readStream = fs.createReadStream('large-file.txt');

readStream.on('data', (chunk) => {
  console.log(`Received ${chunk.length} bytes of data.`);
});

readStream.on('end', () => {
  console.log('Finished reading the file.');
  // 在这里执行后续操作
});

readStream.on('error', (err) => {
  console.error(`An error occurred: ${err.message}`);
});