Node

Question 1

What is a JavaScript module?

Answer 1

A file

Question 2

What values are passed into a Node.js module’s local scope?

Answer 2

exports, module, require, filename, dirname

Question 3

Give two examples of truly global variables in a Node.js program.

Answer 3

process, console, global

Question 4

What is the purpose of module.exports in a Node.js module?

Answer 4

to expose to other modules

Question 5

How do you import functionality into a Node.js module from another Node.js module?

Answer 5

calling a required() to pull the exports from the other file

Question 6

What module does Node.js include for manipulating the file system?

Answer 6

fs module

Question 6

What module does Node.js include for manipulating the file system?

Answer 6

fs module

Question 7

Are file operations using the fs module synchronous or asynchronous?

Answer 7

both

Question 8

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

Answer 8

parses json when you want to receive json from clients