How to remove extra characters in node.js server?

Question

Node.js

Hello! Please tell me how to remove extra characters in a string before writing to the database? Delete tags, etc.
For example, when a user is written to the database at the registration stage. There is a validator on the client, but still it is more important on the server.
Are there any special plugins? I don't even know what to google(
Thanks!

Answer 1

Regulars or replace to help

Answer 2

Maybe there is some ready-made plugin? Because, among other things, you need to check logins, mail, passwords for objectionable characters. Does everyone write the same regular expressions every time?