如何使用nodejs检查数组列表中具有给定扩展名文件

const fs = require('fs');
const path = require('path');

function checkFileExtension(file, extension) {
  const fileExtension = path.extname(file);
  return fileExtension === extension;
}

function checkFilesWithExtension(fileList, extension) {
  const filesWithExtension = fileList.filter(file => checkFileExtension(file, extension));
  return filesWithExtension;
}

const fileList = ['file1.txt', 'file2.jpg', 'file3.js', 'file4.png'];
const extension = '.js';
const filesWithExtension = checkFilesWithExtension(fileList, extension);
console.log(filesWithExtension);