使用lodash或es6 javascript展平嵌套对象

const _ = require('lodash');

const nestedObject = {
  a: 1,
  b: {
    c: 2,
    d: {
      e: 3
    }
  }
};

const flattenedObject = _.flattenDeep(nestedObject);
console.log(flattenedObject);
// 输出: [1, 2, 3]

const nestedObject = {
  a: 1,
  b: {
    c: 2,
    d: {
      e: 3
    }
  }
};

const flattenedObject = Object.keys(nestedObject).reduce((acc, key) => {
  const value = nestedObject[key];
  if (typeof value === 'object' && value !== null) {
    const nestedKeys = Object.keys(value);
    nestedKeys.forEach(nestedKey => {
      acc[`${key}.${nestedKey}`] = value[nestedKey];
    });
  } else {
    acc[key] = value;
  }
  return acc;
}, {});

console.log(flattenedObject);
// 输出: { 'a': 1, 'b.c': 2, 'b.d.e': 3 }

function flattenObject(obj, prefix = '') {
  return Object.keys(obj).reduce((acc, key) => {
    const newKey = prefix ? `${prefix}.${key}` : key;
    const value = obj[key];
    if (typeof value === 'object' && value !== null) {
      Object.assign(acc, flattenObject(value, newKey));
    } else {
      acc[newKey] = value;
    }
    return acc;
  }, {});
}

const nestedObject = {
  a: 1,
  b: {
    c: 2,
    d: {
      e: 3
    }
  }
};

const flattenedObject = flattenObject(nestedObject);
console.log(flattenedObject);
// 输出: { 'a': 1, 'b.c': 2, 'b.d.e': 3 }