Express

Question 1

How do you refer to an Express router?

Answer 1

Call the express object’s Router() method to create a new router object:

const router = express.Router();

Question 2

In Express, how do you start the server on a specific port?

Answer 2

app.listen(port_number, () => doSomething());

Question 3

In Express, what does “app.use” do?

Answer 3

It adds a layer to the Express “middleware stack”

Question 4

In Express, what does the following line do?

app.use(./local/path, pathVariable);

Answer 4

Whenever a request is made to /local/path, the pathVariable is the endpoint that is actually hit

Question 5

When writing a Mongoose schema file, what should the export statement look like (pre-ES6)?

Answer 5

module.exports = Item = mongoose.model(‘item’, ItemSchema)

Question 6

What is Express(.js)?

Answer 6

A backend framework for creating APIs