Answer
Memoization caches results of expensive computations, improving performance when functions are repeatedly executed with the same inputs. Often used in UI rendering optimization or heavy computations.
Quick Answer
Memoization caches a function's result for a given set of inputs — on the next call with the same inputs, return the cached result instead of recomputing. function memoize(fn) { const cache = new Map(); return (...args) => { const key = JSON.stringify(args); return cache.has(key) ? cache.get(key) : cache.set(key, fn(...args)).get(key); }}. Useful for expensive pure functions called repeatedly with the same args.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ