Node

Question 1

What is Node.js?

Answer 1

a program that allows JavaScript to be run outside of a web browser.

Question 2

What can Node.js be used for?

Answer 2

commonly used to build back ends for Web applications. designed to build scalable network applications.

Question 3

What is a REPL?

Answer 3

Read-eval-print loop. a simple interactive computer programming environment that takes single user inputs, executes them, and returns the result to the user

Question 4

When was Node.js created?

Answer 4

May 27th, 2009

Question 5

What back end languages have you heard of?

Answer 5

Ruby, Python, PHP

Question 6

What is a computer process?

Answer 6

the instance of a computer program that is being executed by one or more threads.

Question 7

Roughly how many computer processes are running on your host operating system (Task Manager or Activity Monitor)?

Answer 7

500

Question 8

Why should a full stack Web developer know that computer processes exist?

Answer 8

because full stack Web development is based on making multiple processes work together to form one application.

Question 9

What is the process object in a Node.js program?

Answer 9

the process object is a global that provides information about, and control over, the current Node.js process.

Question 10

How do you access the process object in a Node.js program?

Answer 10

process object is global.

Question 11

What is the data type of process.argv in Node.js?

Answer 11

array