Are non-competes a thing out there? All the contracts I've seen when I was working in VA have barred taking code, customers, etc with you when you leave. But I

Are non-competes a thing out there? All the contracts I've seen when I was working in VA have barred taking code, customers, etc with you when you leave. But I never encountered one of those "you can never work at a company that uses computers after you've worked with us" clauses.