js 比较对象

// 浅比较示例
function shallowEqual(obj1, obj2) {
  const keys1 = Object.keys(obj1);
  const keys2 = Object.keys(obj2);
  if (keys1.length !== keys2.length) return false;
  for (let key of keys1) {
    if (obj1[key] !== obj2[key]) return false;
  }
  return true;
}

// 深比较示例（使用Lodash库）
const _ = require('lodash');
console.log(_.isEqual({a: 1}, {a: 1})); // true

// 递归实现深比较
function deepEqual(obj1, obj2) {
  if (obj1 === obj2) return true;

  if (typeof obj1 !== 'object' || obj1 === null ||
      typeof obj2 !== 'object' || obj2 === null) {
    return false;
  }

  const keys1 = Object.keys(obj1);
  const keys2 = Object.keys(obj2);

  if (keys1.length !== keys2.length) return false;

  for (let key of keys1) {
    if (!keys2.includes(key) || !deepEqual(obj1[key], obj2[key])) {
      return false;
    }
  }

  return true;
}

console.log(deepEqual({a: 1}, {a: 1})); // true