how to install particular version uing npm code example

Example 1: how to install specific package version npm

$ npm install express@4.16.1

+ express@4.16.1
added 48 packages from 36 contributors and audited 121 packages in 2.986s
found 0 vulnerabilities

Example 2: node install specific version

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash