比较两个文件夹中的文件, 以 origin 为基础, target 文件夹中缺失了哪些文件

compare-folder.js

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

const origin = 'C:/origin';
const target = 'C:/target';

const originFiles = fs.readdirSync(origin);
const targetFiles = fs.readdirSync(target);

originFiles.forEach((el) => {
  const full = path.join(origin, el);
  if (fs.lstatSync(full).isFile()) {
    if (
      !targetFiles.some(
        (x) => filenameWithoutExtension(x) === filenameWithoutExtension(el)
      )
    ) {
      console.log(el);
    }
  }
});

function filenameWithoutExtension(filename) {
  return filename.split('.').slice(0, -1).join('.');
}