Username: The username that will be displayed when you publish packages or interact with other npm users on npmjs.com. Your username must be lower case, and can contain hyphens and numerals.
Email address: Your public email address will be added to the metadata of your packages and will be visible to anyone who downloads your packages. We will also send email to this account when you update packages, as well as occasional product updates and information.
Note: After signing up for an npm account, you will receive an account verification email. You must verify your email address in order to publish packages to the registry.
Testing your new account with npm login
Use the npm login command to test logging in to your new account.
Note: If you misspell your existing account username when you log in with the npm login command, you will create a new account with the misspelled name. For help with accidentally-created accounts, contact npm Support.
On the command line, type the following command:
When prompted, enter your username, password, and email address.