performance-fundamentals

Features and purpose

TRIGGERS: "is this performant?", "will this scale?", "performance check", "too slow", "fetching data", "loading list", "rendering many", "large dataset", "lots of items", "mapping over", "looping through", "pagination", "infinite scroll", "caching", N+1 queries, re-renders, memory leaks, Big O, optimization, caching, lazy loading, pagination. USE WHEN: Junior is BUILDING features with loops, data fetching, lists, or resource-intensive operations. PROVIDES: N+1 detection, complexity analysis, caching strategies, scalability assessment. PROACTIVE: Triggers when junior mentions building features that could have performance implications.

Quick start

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