js比较两个数组对象,取出不同的值

js比较两个数组对象,取出不同的值

先搬运

var array1 = [ {"Num": "A "  },{"Num": "B" }];
var array2 = [ {"Num": "A ","Name": "t1 " }, {"Num": "B","Name": "t2"}, {"Num": "C " ,"Name": "t3 "}];
var result = [];
for(var i = 0; i < array2.length; i++){
    var obj = array2[i];
    var num = obj.Num;
    var isExist = false;
    for(var j = 0; j < array1.length; j++){
        var aj = array1[j];
        var n = aj.Num;
        if(n == num){
            isExist = true;
            break;
        }
    }
    if(!isExist){
        result.push(obj);
    }
}
console.log(result);

$scope.datacaseNodeArr = [];
                    for(var i = 0; i < datacaseRes.length; i++){
                        var isExist = false;
                        for(var j = 0; j < flowResData.length; j++){
                            if(flowResData[j].id == datacaseRes[i].id){
                                isExist = true;
                                break;
                            }
                        }
                        if(!isExist){
                            $scope.datacaseNodeArr.push(datacaseRes[i]);
                        }
                    }
       ```
       

然后用到的：
for循环中的值只能赋一个（重要）

 for (var i in this_.proEcho) {
               var isExist = false;
              if (this_.proEcho[i].custno != "") {
                for (var j in this_.tableData3) {
                  if (
                    this_.proEcho[i].custno == this_.tableData3[j].personCustno
                  ) {
                    this_.requParams.proCustno.push(this_.proEcho[i].custno);
                       isExist = true;
                     break;
                  } 
                }  //重点
                if(!isExist){
                     this_.requParams.proCustno.push(this_.proEcho[i].name);
                    this_.editEcho.push({
                      custno: this_.proEcho[i].custno,
                      inviteCustno: this_.proEcho[i].inviteCustno,
                      metd: this_.proEcho[i].metd,
                      ctco: this_.proEcho[i].ctco,
                      proRole: "1",
                      name: this_.proEcho[i].name
                    });
                    break;
                  }
              } else {
                this_.requParams.proCustno.push(this_.proEcho[i].name);
                    this_.editEcho.push({
                      custno: this_.proEcho[i].custno,
                      inviteCustno: this_.proEcho[i].inviteCustno,
                      metd: this_.proEcho[i].metd,
                      ctco: this_.proEcho[i].ctco,
                      proRole: "1",
                      name: this_.proEcho[i].name
                    });
              }
            }

或者

for (var i in this_.proEcho) {
              if (this_.proEcho[i].custno != "") {
                var obj = this_.proEcho[i];
                var num = obj.custno;
                var isExist = false;
                for (var j in this_.tableData3) {
                  var aj = this_.tableData3[j];
                  var n = aj.personCustno;
                  if (n == num) {
                    isExist = true;
                    this_.requParams.proCustno.push(this_.proEcho[i].custno);
                    break;
                  }
                }
                if (!isExist) {
                  this_.requParams.proCustno.push(this_.proEcho[i].name);
                  this_.editEcho.push({
                    custno: this_.proEcho[i].custno,
                    inviteCustno: this_.proEcho[i].inviteCustno,
                    metd: this_.proEcho[i].metd,
                    ctco: this_.proEcho[i].ctco,
                    proRole: "1",
                    name: this_.proEcho[i].name
                  });
                }
              } else {
                this_.requParams.proCustno.push(this_.proEcho[i].name);
                this_.editEcho.push({
                  custno: this_.proEcho[i].custno,
                  inviteCustno: this_.proEcho[i].inviteCustno,
                  metd: this_.proEcho[i].metd,
                  ctco: this_.proEcho[i].ctco,
                  proRole: "1",
                  name: this_.proEcho[i].name
                });
              }
            }