Node

Question 1

In Node, what is the package.json file?

Answer 1

It shows the project name, version, author, dependencies, a list of scripts, and more about the project

Question 2

What is the “scripts” object in package.json?

Answer 2

A list of scripts that can be run with the syntax:

npm run script-name

Question 3

What does the “proxy” property refer to in package.json?

Answer 3

It proxies api requests to start with a base URL

i.e. “proxy”: “http://localhost:5000”

Question 4

What is the “concurrently” Node package used for in full stack development?

Answer 4

Running the client and server side code simultaneously

Question 5

In Node, what does the –prefix flag do?

npm start –prefix name

Answer 5

Enables you to run a npm command against a different directory
(i.e. npm start –prefix client)

Question 6

What is the syntax for the “concurrently” package to run both the client and the server commands from “scripts”?

Answer 6

“dev”: “concurrently "npm run client" "npm run server"”

Question 7

In the scripts section of package.json, why would you add “client-install” script that uses npm install on the client directory?

Answer 7

To help install the client-side dependencies for when the project is cloned (i.e. from Git)

Question 8

In a MERN application, where should bootstrap and reactstrap be installed?

Answer 8

In the client directory (all front-end code is in here)

Question 9

How would you import ‘uuid’ into a MERN module?

Answer 9

import {v4 as uuid} from ‘uuid’;

Question 10

What is does “process” (i.e. process.env) represent in Node?

Answer 10

The current process. One process is run per Node script. Therefore, this is a global object.

Question 11

What is the syntax for printing the code that’s currently running in Node.js?

Answer 11

var fs = require(‘fs’);

fs.createReadStream(__filename).pipe(process.stdout)