Answers for "node packages install"

reinstall node modules packages

npm i -g npm
rm -rf node_modules/
npm i

reinstall node modules packages

npm i -g npm

cd {working directory}
rm -rf node_modules/
rm package-lock.json
npm cache clear --force
npm i

how to install any package in node.js

#how to install any specific package in nodejs Application
# Syntex
npm install packagename

# example:
npm install express
npm i express

#if you install globally then type 
npm install express -g