如何用javascript每隔1秒打印一次.txt文件的内容？

const fs = require('fs');
const setInterval = require('timers').setInterval;

function printFileContent() {
  fs.readFile('example.txt', 'utf8', (err, data) => {
    if (err) throw err;
    console.log(data);
  });
}

setInterval(printFileContent, 1000);

const fs = require('fs');
const setInterval = require('timers').setInterval;

function printFileContent() {
  fs.readFile('example.txt', 'utf8', (err, data) => {
    if (err) throw err;
    console.log(data);
  });
}

setInterval(printFileContent, 1000);