npm init means code example

Example 1: npm default init

npm config ls -l	# List some default settings

npm config set <key> <value> -g	# Set default value for a key
npm config set init-author-name "John Doe" -g	# Set default author
npm config set init-version "1.0.0" -g	# Set default version
npm config set init-license "MIT" -g	# Set default license

npm config get <key>	# Get default value for a key

npm init -y	# Create package.json with default settings

Example 2: what is npm init

The npm init command is a step-by-step tool to scaffold out your project. 
It will prompt you for input for a few aspects of the project 
in the following order:

The project's name,
The project's initial version,
The project's description,
The project's entry point (meaning the project's main file),
The project's test command (to trigger testing with something like Standard)
The project's git repository (where the project source can be found)
The project's keywords (basically, tags related to the project)
The project's license (this defaults to ISC - most open-source Node.js projects are MIT)