Express JS Express Routing

Question 1

Which method defines a route that responds to all HTTP methods in Express?

Accepted Answer

app.all()

Answer

app.any()

Answer

app.every()

Answer

app.universal()

Question 2

What is the correct way to define a route parameter named 'id' in Express?

Accepted Answer

/user/:id

Answer

/user/{id}

Answer

/user/[id]

Answer

/user/$id

Question 3

How do you access a route parameter named 'userId' in an Express handler?

Accepted Answer

req.params.userId

Answer

req.query.userId

Answer

req.body.userId

Answer

req.id.userId

Question 4

Which Express object is used to create a modular, mountable route handler?

Accepted Answer

express.Router()

Answer

express.Route()

Answer

express.Module()

Answer

express.Handler()

Question 5

How do you mount a router module at the path '/api' in Express?

Accepted Answer

app.use('/api', router)

Answer

app.mount('/api', router)

Answer

app.attach('/api', router)

Answer

app.route('/api', router)

Question 6

What does the next() function do inside an Express route handler?

Accepted Answer

Passes control to the next matching middleware or route

Answer

Sends the response to the client

Answer

Ends the request-response cycle

Answer

Redirects to the next URL