比较两个不同的数组元素，删除节点js中的匹配元素。

Question

我有两个数组对象如下所示：

var arrayOne = [{"Name":"job","SubscriptionGUID":"8ead7edfa460"},{"Name":"TestJobSQL","SubscriptionGUID":"09e7dbff7779"}];
var arrayTwo = [{"UserSubscriptionID":13,"SubscriptionGUID":"8ead7edfa460","Name":"job"}];
var arrayDiff = [];

我需要比较元素名称和删除匹配元素，只显示arrayDiff中不匹配的数组元素。

如上例所示，我的新arrayDiff应该是

var arrayDiff = [{"Name":"TestJobSQL"}]; or var arrayDiff = ['TestJobSQL'];

如果arrayTwo是

var arrayTwo = [];

那么arrayDiff应该返回

var arrayDiff = [{"Name":"TestJobSQL"},{"Name":"Job"}]; or  var arrayDiff = ['TestJobSQL', 'Job'];

Answer 1

尝尝这个

var arrayOne = [{"Name":"job","SubscriptionGUID":"8ead7edfa460"},{"Name":"TestJobSQL","SubscriptionGUID":"09e7dbff7779"}];
var arrayTwo = [{"UserSubscriptionID":13,"SubscriptionGUID":"8ead7edfa460","Name":"job"}];
var arrayDiff = [];
arrayOne.forEach(function(item, index){
    var found = false;
    arrayTwo.forEach(function(item1, index1){
        if(item.Name == item1.Name) {
            found = true;
        }   
    })
    if(found == false) {
        arrayDiff.push({ Name : item.Name});
    }
})
console.log(arrayDiff);

Answer 2

一种简单的方法是使用lodash's和_.differenceBy方法。

它让我们根据您想要的属性创建两个不同的数组。

Answer 3

var createDiffArray = function(attrName,arrayOne,arrayTwo){
   var arrayDif = [];
   for (let element of arrayOne){
      if (arrayTwo.find( x => x[attrName] === element[attrName]) !== undefined){
          arrayDif.push(element[attrName]);
      }  
   }
   return arrayDif;
}