$ sudo npm install zxcvbn
$ sudo npm install -g zxcvbn

If want to update the zxcvbn package execute the command as below,

$ sudo npm update zxcvbn

Update package globally,

$ npm install -g zxcvbn

Git clone:

$ sudo  git clone https://github.com/rektide/zxcvbn.git

$ sudo  npm install -g ./zxcvbn

zxcvbn@4.4.2 /usr/lib/node_modules/zxcvbn

How to remove zxcvbn package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall zxcvbn

Basic Information of zxcvbn NPM Package: