Keyed Memoization

HardClosures & ScopePRO

Implement keyed memoization with JavaScript closures, a private cache, and a key selector for object inputs. This hard exercise focuses on separating identity decisions from cached work, including falsey cached results.

What you'll practice

Implement keyed memoization with JavaScript closures
A private cache
A key selector for object inputs
Separating identity decisions from cached work
Falsey cached results

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