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TypeScript Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
TypeScript
What are TypeScript's built-in utility types (Partial, Pick, Omit, etc.) actually implemented as?
A
Special compiler-only magic with no equivalent in user code
B
Ordinary generic types built from the same mapped-type and conditional-type mechanisms available to any TypeScript code
C
Runtime JavaScript functions
D
A separate language extension
Check Answer