NodeJS callback after multiple async-functions in for-loop

Question

I get a document from a mongodb which contains an array with comments for that document. In the comment is the _id of the user which wrote the comment.

I now need to ge

Answer 1

You can try like the following way

const d = {
    "_id" : ObjectId("5c18c1cbc47e5e29d42e4b0e"),
    "completed" : false,
    "completedAt" : null,
    "comment" : [ 
        {
            "_id" : ObjectId("5c18c95e328c8319ac07d817"),
            "comment" : "This is a comment",
            "rating" : [ ],
            "user" : ObjectId("5c18b76e73236d2168eda2b4")
        }, 
        {
            "_id" : ObjectId("5c18fb578de5741f20a4e2bd"),
            "comment" : "Another comment",
            "rating" : [ ],
            "user" : ObjectId("5c18b76e73236d2168eda2b4")
        }
    ]
}

d.comment.forEach( async (obj, index) => {
    await new Promise((res) => {
            obj.counter = index;
            res();
    })
});

console.log(d);

For reference please take a look on following link Asycn/Await using forEach