type Object Validation in Mongoose?

I am trying to do schema validation in mongoose of type object and array, but I am not able to do that. Here is the schema:

var alertEmailSchema = new alertEmailSchema({
    templateId: { type: String, required: true,unique: true},
    templateName : { type: String, required: true},
    status: Boolean,
    frequency : { type: Object, required: true},
    recipientsEmailId : { type: [String], default: [], required: true},
    subject : { type: String, required: true},
    message : { type: String, required: true},
    description : String, 
    createdDate : {type : Date, default : Date.now},
    updatedDate : {type : Date, default : Date.now}
});

 var schemaValidation = newAlertEmail.validateSync();

Please tell me how can I do the validation for this.

via Anita Mehta