How to find an index array inside the MongoDB document - mongodb

Question

I have one collection with this document format:
{
"_id" : ObjectId("5c51fe3a6abdf0e5cd78f658"),
"0" : {
"id" : 1,
"name" : "carlos"
},
"1" : {
"id" : 2,
"name" : "foo"
},
"2" : {
"id" : 3,
"name" : "Jhon Doe"
},
"3" : {
"id" : 4,
"name" : "Max"
}
}
the only way to access the properties was doing a foreach loop and another for in inside.
db.getCollection('tutorial').find({}).forEach( (users) => {
for(user in users){
print("ID-> " + users[user].id, " Name->" + users[user].name);
}
});
But I can only print the results, there is another way to return a value using find ?
Thanks in advance.

Answer 1

You have to split up your operations. Get the collection first and then run a function to return the value you wish:
let collection = db.getCollection('tutorial').find({});
let name = () => {collection.forEach( (users) => {
for(user in users){
if(users[user].name == "foo"){
return ("ID-> " + users[user].id, " Name->" + users[user].name);
}
}
})};
or simply create a variable and set it when you run the loops
let name;
db.getCollection('tutorial').find({}).forEach( (users) => {
for(user in users){
name = ("ID-> " + users[user].id, " Name->" + users[user].name);
}
});
or something similar
Though all of these scenarios seem like a strange way to handle a mongo collection. I would definitely recommend restructuring your collection if you can't access the data using regular find method.