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TypeScript Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
hard
TypeScript
What does the trailing comma in `const List = <T,>(...) => ...` actually do semantically?
A
It adds a second, unnamed type parameter
B
Nothing semantically — it exists purely to disambiguate a generic type parameter list from the start of a JSX element in the .tsx parser
C
It makes T optional
D
It's a typo that happens to work
Check Answer