npm

Question 1

What is the abbreviated version of “npm install”?

Answer 1

npm i

Question 2

What command is used to install all dependencies for a MEVN application using NPM?

Answer 2

npm i express cors body-parser mongodb

Question 3

What is the body-parser package used for in NPM?

Answer 3

It helps to parse out data from the “body” of requests/responses

Question 4

What is the “nodemon” package in NPM?

Answer 4

It is used for developing node applications. It automatically restarts the node application when file changes in the directory are made

Question 5

In NPM, what are devDependencies?

Answer 5

They are modules that are only required during development and not required for runtime (i.e. nodemon)

Question 6

In NPM, what is the command to install a devDependency?

Answer 6

npm i -D

Question 7

In a package.json file, what is the “start” key-value pair used for?

“scripts”: {“start”: “node server/index.js””}

Answer 7

It is where the command is placed to run the application

Question 8

In a package.json file, what is the “dev” key-value pair used for?

“scripts”: {“dev”: “nodemon server/index.js””}

Answer 8

It is used to specify that nodemon will be used during development of the application

Question 9

What is Node(.js)?

Answer 9

Node is a JavaScript runtime which allows JS to be used as a server-side language