在javascript/nodejs中深入比较两个对象的最快方法是什么

function deepEqual(obj1, obj2) {
  // 检查属性数目是否相同
  const keys1 = Object.keys(obj1);
  const keys2 = Object.keys(obj2);
  if (keys1.length !== keys2.length) {
    return false;
  }

  // 比较每个属性值
  for (let key of keys1) {
    const val1 = obj1[key];
    const val2 = obj2[key];
    
    if (typeof val1 === 'object' && typeof val2 === 'object') {
      // 递归比较对象类型的属性值
      if (!deepEqual(val1, val2)) {
        return false;
      }
    } else if (val1 !== val2) {
      // 比较基本类型的属性值
      return false;
    }
  }

  return true;
}

// 示例使用
const obj1 = { name: 'John', age: 30, address: { city: 'New York', country: 'USA' } };
const obj2 = { name: 'John', age: 30, address: { city: 'New York', country: 'USA' } };
const obj3 = { name: 'Jane', age: 25, address: { city: 'London', country: 'UK' } };

console.log(deepEqual(obj1, obj2)); // true
console.log(deepEqual(obj1, obj3)); // false