express

Question 1

How do you add express to your package dependencies?

Answer 1

you use:

npm install express

Question 2

What Express application method starts the server and binds it to a network PORT?

Answer 2

app.listen(x)

x is the designated port

Question 3

What does the express.json() middleware do and when would you need it?

Answer 3

parse incoming request with json payloads.

it is used when the content type header matches content type

Question 4

What does express.static() return?

Answer 4

its a middleware function

Question 5

What is the local __dirname variable in a Node.js module?

Answer 5

it is the name of the directory that you are currently in

Question 6

What does the join() method of Node’s path module do?

Answer 6

it joins all given path segments methods together and returns it into a string.