Defining models in Express - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Mongoose library.

Express

const mongoose = require([1]);

Drag options to blanks, or click blank then click option'

A"fs"

B"express"

C"mongoose"

D"http"

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'express' instead of 'mongoose'.

Forgetting the quotes around the package name.

We import Mongoose by requiring the "mongoose" package.

2fill in blank

medium

Complete the code to define a new Mongoose schema.

Express

const userSchema = new mongoose.[1]({ name: String, age: Number });

Drag options to blanks, or click blank then click option'

AModel

BSchema

CDocument

DCollection

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Model' instead of 'Schema'.

Confusing schema with collection.

We create a schema using mongoose.Schema.

3fill in blank

hard

Fix the error in the code to create a model from the schema.

Express

const User = mongoose.model('User', [1]);

Drag options to blanks, or click blank then click option'

AuserSchema

BuserSchema()

CUserSchema

DUser

Attempts:

3 left

💡 Hint

Common Mistakes

Calling userSchema as a function.

Using capitalized 'UserSchema' when the variable is lowercase.

The model function expects the schema object, which is userSchema.

4fill in blank

hard

Fill both blanks to define a schema with a required string field and a number field.

Express

const productSchema = new mongoose.[1]({ name: { type: String, [2]: true }, price: Number });

Drag options to blanks, or click blank then click option'

ASchema

Brequired

Cunique

Ddefault

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'unique' instead of 'required' for mandatory fields.

Using 'Model' instead of 'Schema' for schema definition.

We use Schema to define the schema and required: true to make the field mandatory.

5fill in blank

hard

Fill all three blanks to create and export a Mongoose model named 'Order' with a schema having a date and total fields.

Express

const orderSchema = new mongoose.[1]({ date: Date, total: Number });
const Order = mongoose.[2]('Order', [3]);
module.exports = Order;

Drag options to blanks, or click blank then click option'

ASchema

Bmodel

CorderSchema

DDocument

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Document' instead of 'Schema'.

Passing the model name instead of the schema to mongoose.model.

We define the schema with Schema, create the model with model, and pass the schema variable orderSchema.