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JavaScript Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
hard
JavaScript
What makes a property-access call site 'megamorphic,' and why does it matter?
A
It means the property doesn't exist
B
It's called with objects of MANY different hidden-class shapes, forcing V8 to abandon its fast inline-cache lookup and fall back to a slower general-purpose path
C
It's a term for functions with too many parameters
D
It only applies to class methods, never plain functions
Check Answer