text: const   mongoose  =   require('mongoose'),
          UserProfileSchema = new mongoose.Schema({
              firstName:String,
              lastName:String,
              DOB:{type:Date},
              email:String,
              username:{
                  type:String,
                  unique:true,
                  lowercase:true
              },
              likeSchema:[{type:mongoose.Schema.Types.ObjectId, ref:'Like'}]
              
          });
  
  
          module.exports= mongoose.model('UserProfile', UserProfileSchema);