How to find whether particular element exist in array of object or not in mongodb

Question

My database schema looks like below:

import mongoose, { Schema, Document } from 'mongoose';

export interface ITeam extends Document {

  email: string;

  name: string;

  role: boolean;

  status: string;

}

export interface IAdmin extends Document {

  adminEmail: string;

  adminName: string;

  teamMate: Array<ITeam>[];

}

const TeamSchema = new Schema({

  email: { type: String, required: true },

  name: { type: String, required: true },

  role: { type: Boolean, required: true },

  status: { type: String, required: true },

});

const AdminSchema = new Schema({

  adminEmail: { type: String, required: true },

  adminName: { type: String, required: true },

  teamMate: [TeamSchema],

});

export default mongoose.model<IAdmin>('Admin', AdminSchema);

In db it is:

_id:61ec9cbd2beb5b236d9035f4

    teamMate  :

    Array
        0  :Object
            name:"neha"
            role :true
            status:"inActive"
            email:"[email protected]"
        1 : Object
            name :"xyz"
            role :true
            status :"inActive"
            email :"[email protected]"
    adminEmail :"[email protected]"
    adminName :"abc"

I have tried this:

 const teamMember: Array<ITeam> = req.body.teamMate;

 const t= teamMember.map(x=> x.email)

   t.forEach((x)=>{

   const l= AdminModel.find({teamMate:{elemMatch:{email:x.email}}})
 })

this line showing error:

const l= AdminModel.find({teamMate:{elemMatch:{email:x.email}}})

I want to check whether particular("[email protected]") email exist or not, If yes then don't add it to Database. I don't want to do it with index wise as it is not confirm how many teamMate will be there.

Thanks in Advance