Question 117684 in Mongodb Question posted in
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Mongodb – How to find all elements of array in database

I had taken this array

arr = ["1","2"]

And I want to find this id’s are present in mongodb in user collection or not,
So how do I write query in mongoose for that?

user.find({'empid':'arr'},(err,res))

I am doing like this.

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2

Answers


  1. 0

    You should first loop through your array then run mongodb query to find item.
    code should be some thing like this:

    for(item in arr){
    user.find({'empid':item},(err,res))
}
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  2. 0

    I think you are looking for the query operator "$in".

    Here’s how you can do it.

    db.user.find({
  "empid": {"$in": ["1", "2"] }
})

    Try it on mongoplayground.net.

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