CODEWITHSUNDEEP
javascriptobject
Raj Jaril
Raj Jaril

Reputation: 376

How can i remove nested or parent object from array in javascript

I want to remove object using its id, I don't want MongoDB query I just want to remove object using its id, array stored in the variable, we can use the javascript function aswell

Example
If I pass id=ObjectId("5b693e7ddd65ec16a46b7f82") from this object

 [{
     "commentedBy": "test",
     "subComments": {
         "commentedBy": "jaril 2",
         "subComments": {
             "commentedBy": "jaril 3",
             "subComments": {
                 "commentedBy": "jaril 4",
                 "commentId": ObjectId("5b693e7ddd65ec16a46b7f85")
             },
             "commentId": ObjectId("5b693e7ddd65ec16a46b7f84")
         },
         "commentId": ObjectId("5b693e7ddd65ec16a46b7f83")
     },
     "commentId": ObjectId("5b693e7ddd65ec16a46b7f82")
 }]

then output should like this

[]

or if i pass id=ObjectId("5b693e7ddd65ec16a46b7f83") then output should this

[{
    "commentedBy": "test",
    "commentId": ObjectId("5b693e7ddd65ec16a46b7f82")
}]

I use this recursive function for remove comments but it's not removing, because we need to pass key of it

async.eachSeries(result[0].comments, function (data, cb) {
    function deleteCommentId(comments) {
        if (comments.commentId.valueOf() == req.body.commentId) {
            delete comments
        }

        if (comments.subComments) {
            deleteCommentId(comments.subComments);
        }

        return comments;
    }

    deleteCommentId(data)
    return cb();
}, function () {
    console.log(JSON.stringify(resultFind))
})

If I have 500 sub comments then we should we able to any of them with its id, any help would be appreciated.

Upvotes: 1

Views: 282

Answers (1)

Abin Thaha
Abin Thaha

Reputation: 4633

Could you please check if this works well for your requirement?

function retComment(commentArray, id) {
    if (commentArray.commentId === id || !commentArray.subComments) {
        return [];
    } else if (commentArray.subComments && commentArray.subComments.commentId === id) {
        return {
            "commentedBy": commentArray.commentedBy,
            "commentId": commentArray.commentId
        }
    } else {
        retComment(commentArray.subComments, id)
    }
}

You need to make the initial call like retComment(commentArray[0], "5b693e7ddd65ec16a46b7f82")

Upvotes: 1

Related Questions