如何使用nodejs转换和映射多个json对象？

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

function readJSONFile(filePath) {
  const fileContent = fs.readFileSync(filePath, 'utf-8');
  return JSON.parse(fileContent);
}

function mergeJSONObjects(jsonObjects) {
  return Object.assign({}, ...jsonObjects);
}

function writeJSONFile(filePath, jsonObject) {
  const jsonString = JSON.stringify(jsonObject, null, 2);
  fs.writeFileSync(filePath, jsonString, 'utf-8');
}

function mapJSONObjects(jsonObjects, mappingFunction) {
  return jsonObjects.map(mappingFunction);
}

function main() {
  const inputFiles = ['file1.json', 'file2.json', 'file3.json']; // 输入的JSON文件路径
  const outputFilePath = 'output.json'; // 输出的JSON文件路径

  const jsonObjects = inputFiles.map(file => readJSONFile(file));
  const mergedObject = mergeJSONObjects(jsonObjects);
  const mappedObject = mapJSONObjects(mergedObject, mappingFunction);

  writeJSONFile(outputFilePath, mappedObject);
}

main();