node modules : further details

Question 1

external node modules

Answer 1

npm is a source of obtaining third party modules

will be installed in node_modules folder

Question 2

npm is a source of obtaining third party modules

will be installed in node_modules folder

Answer 2

require(“name/relatepath”) function

Question 3

starting file for the node module

root for all the files and folder

Answer 3

index.js

Question 4

you will see this in all node modules

Answer 4

package.json

Question 5

to create package.json

Answer 5

use npm init

Question 6

version number is specified as

Answer 6

3 digits

Question 7

semantic versioning numbering system

Answer 7

major.minor.patch
major version - additional features added and not necessarily be backward compatible
minor version - both bug fix and some enhancement added but backward compatible
patch version - bug fix issued

Question 8

devDependencies

Answer 8

used only when developing

Question 9

install exact particular version

Answer 9

npm install express@4.0.0

Question 10

install patch version higher than specified number available

Answer 10

npm install express@”~4.0.0”

Question 11

minor version acceptable

Answer 11

npm install express@”^4.0.0”

Question 12

Node modules

Answer 12

File based - allow us to design our own modules
Core node modules - provides certain basic functionalities - fs, os, path, util
External modules