我有以下2个阵列SELECT ques_id, question, ans
FROM tbl_questions t1
where not exists (select 1 from tbl_questions t2
where t2.ques_id = t1.ques_id
and t2.id > t1.id)
＆amp; $scope.oldArray
$scope.newArray这里我需要比较这两个数组，然后在$scope.oldArray = [{
"status": "New",
"priority_summary": "High",
"u_id" : 1
}, {
"status": "New",
"priority_summary": "High",
"u_id" : 2
}, {
"status": "New",
"priority_summary": "High",
"u_id" : 3
}, {
"status": "New",
"priority_summary": "High",
"u_id" : 4
}];
$scope.newArray = [{
"status": "Old",
"priority_summary": "Low",
"u_id" : 1
}, {
"status": "Old",
"priority_summary": "High",
"u_id" : 2
}, {
"status": "New",
"priority_summary": "Low",
"u_id" : 3
}, {
"status": "New",
"priority_summary": "High",
"u_id" : 4
}];
＆amp;中删除已更改的对象。将更改后的对象从$scope.oldArray添加到$scope.newArray。
注意：不应将$scope.oldArray中的所有值替换为$scope.newArray。
答案 0 :(得分：1)
要比较的数组对象可以使用angular.forEach
angular.forEach(oldArray , function(value1, key1) {
angular.forEach(newArray , function(value2, key2) {
if (!(value1.status == value2.status&&
value1.priority_summary==value2.priority_summary
&& value1.u_id==value2.u_id)) {
value1.status=value2.status;
value1.priority_summary=value2.priority_summary;
value1.u_id=value2.u_id;
}
});
});