Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →

Knowledge Check

performance.now Mastery Check

Pass mark 70% · 5 minutes

QUESTION 1 / 1

Which approach best demonstrates mastery of performance.now?

Ignore feature-specific behavior if syntax is valid. Reuse any valid example from the same technology. Use performance.now for its demonstrated behavior and verify the relevant boundary or failure condition. Only rename identifiers in unrelated code.

performance.now Mastery Check

Which approach best demonstrates mastery of performance.now?

Notice