Skip to content
Atomic
Reps
Agent
Teams
Campus
Courses
Games
Pricing
Sign In
Try a question
Today's rep
Accept invitations
Sign In
Try a question
Atomic
Reps
Keep your AI tools. Keep your skills.
01
Agent
02
Teams
03
Campus
04
Courses
05
Games
06
Pricing
More
Research
Questions
Docs
Newsletter
Support
Privacy
Terms
Security
DPA
Try a question
Sign In
TypeScript: What the Type System Checks
any, unknown, and the assertion escape hatch
Lesson 6 of 27
← Type Foundations · Review
Type guards →
AtomicReps