Reputation: 1376
I need to find the index of the mongoose objectID in an array like this:
[ { _id: 58676b0a27b3782b92066ab6, score: 0 },
{ _id: 58676aca27b3782b92066ab4, score: 3 },
{ _id: 58676aef27b3782b92066ab5, score: 0 }]
The model I am using to compare is a mongoose schema with the following data:
{_id: 5868d41d27b3782b92066ac5,
updatedAt: 2017-01-01T21:38:30.070Z,
createdAt: 2017-01-01T10:04:13.413Z,
recurrence: 'once only',
end: 2017-01-02T00:00:00.000Z,
title: 'Go to bed without fuss / coming down',
_user: 58676aca27b3782b92066ab4,
__v: 0,
includeInCalc: true,
result: { money: 0, points: 4 },
active: false,
pocketmoney: 0,
goals: [],
pointsawarded: { poorly: 2, ok: 3, well: 4 },
blankUser: false }
I am trying to find the index of the model._user in the array above using the following:
var isIndex = individualScores.map(function(is) {return is._id; }).indexOf(taskList[i]._user);
Where individualScores is the original array and taskList[i] is the task model. However, this always returns -1. It never finds the correct _id in the array.
Upvotes: 0
Views: 832
Reputation: 16805
I think your process should working well that you are using just only need to convert 'objectID' to String
to compare. Convert using .toString()
for both of _id
and _user
.
like bellow:
var isIndex = individualScores.map(function(is) {
return is._id.toString();
}).indexOf(taskList[i]._user.toString());
Upvotes: 0
Reputation: 3881
I guess your problem is related to how _id
are returned by your query
If you get _id
as String
, your code should work, check the snippet below
But if instead, you get ObjectsId
s, you have to cast them to String first
var individualScores = [
{ _id: "58676b0a27b3782b92066ab6", score: 0 },
{ _id: "58676aca27b3782b92066ab4", score: 3 },
{ _id: "58676aef27b3782b92066ab5", score: 0 }
]
var task = {
_id: "5868d41d27b3782b92066ac5",
updatedAt: new Date("2017-01-01T21:38:30.070Z"),
createdAt: new Date("2017-01-01T10:04:13.413Z"),
recurrence: 'once only',
end: new Date("2017-01-02T00:00:00.000Z"),
title: 'Go to bed without fuss / coming down',
_user: "58676aca27b3782b92066ab4",
__v: 0,
includeInCalc: true,
result: { money: 0, points: 4 },
active: false,
pocketmoney: 0,
goals: [],
pointsawarded: { poorly: 2, ok: 3, well: 4 },
blankUser: false
}
var isIndex = individualScores.map(
function(is) {
return is._id;
})
.indexOf(task._user);
console.log(isIndex)
Upvotes: 1