如何使用lodash检查两个对象的值是否相同

如何解决如何使用lodash检查两个对象的值是否相同

我有两个如下所示的对象

对象1：

{
  "action": "Accept","destination_port": "","destination_subnet": "192.168.1.2","id": "59-1601004430291","lan_interface": "eth0","order": 2,"protocol": "any","source_port": "","source_subnet": "192.168.0.0/32","wan_interface": "wlan0"
}

对象2：

{
  "action": "Accept","destination_subnet": "0.0.0.0","protocol": "tcp","source_subnet": "198.168.43.0","wan_interface": "wlan0"
}

我想比较两个对象，并检查值是否相同。但是object1可能具有一些object2中不可用的属性。

我已经完成了如下的实现

const isDuplicate = (o1,o2) => {
  if (
     o1.action === o2.action &&
     o1.destination_port === o2.destination_port &&
     o1.destination_subnet === o2.destination_subnet &&
     o1.lan_interface === o2.lan_interface &&
     o1.protocol === o2.protocol &&
     o1.source_port === o2.source_port &&
     o1.source_subnet === o2.source_subnet &&
     o1.wan_interface === o2.wan_interface
    ) {
        return true;
      } else {
        return false;
      }
  };

我想知道用lodash是否可以简化它

解决方法

使用_.isEqual()比较要检查的两项的子集（通过_.pick()）：

const isDuplicate = (...objs) => _.isEqual(...objs.map(o => _.pick(
  o,['action','destination_port','destination_subnet','lan_interface','protocol','source_port','source_subnet','wan_interface'],)))

const obj1 = {"action":"Accept","destination_port":"","destination_subnet":"192.168.1.2","id":"59-1601004430291","lan_interface":"eth0","order":2,"protocol":"any","source_port":"","source_subnet":"192.168.0.0/32","wan_interface":"wlan0"}

const obj2 = {"action":"Accept","destination_subnet":"0.0.0.0","protocol":"tcp","source_subnet":"198.168.43.0","wan_interface":"wlan0"}

const result = isDuplicate(obj1,obj2)

console.log(result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js" integrity="sha512-90vH1Z83AJY9DmlWa8WkjkV79yfS2n2Oxhsi2dZbIv0nC4E6m5AbH8Nh156kkM7JePmqD6tcZsfad1ueoaovww==" crossorigin="anonymous"></script>

如果第二个对象始终是第一个对象的子集，则可以改用_.isMatch()，但这只会检查obj2上存在的属性：

const obj1 = {"action":"Accept","destination_port":""}

const result = _.isMatch(obj1,obj2)

console.log(result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js" integrity="sha512-90vH1Z83AJY9DmlWa8WkjkV79yfS2n2Oxhsi2dZbIv0nC4E6m5AbH8Nh156kkM7JePmqD6tcZsfad1ueoaovww==" crossorigin="anonymous"></script>

,

修改：对于您的问题，我很抱歉，请重试。

let obj1 = {
  "action": "Accept","destination_port": "","destination_subnet": "192.168.1.2","id": "59-1601004430291","lan_interface": "eth0","order": 2,"protocol": "any","source_port": "","source_subnet": "192.168.0.0/32","wan_interface": "wlan0"
};

let obj2 = {
  "action": "Accept","destination_subnet": "0.0.0.0","protocol": "tcp","source_subnet": "198.168.43.0","wan_interface": "wlan0"
};

let obj3 = {
  "action": "Accept","destination_port": ""
};
let obj4 = {
  "action": "Accept","destination_port": ""
};


function comp(obj1,obj2) {
  return JSON.stringify(obj1) === JSON.stringify(obj2)
}

console.log(comp(obj1,obj2));
console.log(comp(obj3,obj4));