Regex to say not this character in MongoDB

Question

I'm doing some work with mongodb and Regex.

So, I have run:

{
   "email": /@/
}

Now I want to say:

{
   "email": does not contain @
}

any help would be appreciated

Answer 1

• Use {email: /^[^@]*$/}.
• Or use {email: {$not: /@/}}.