Binary Search vs Array.includes() on a 50,000-Row Catalog
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Array.includes() took 408ms for 10,000 lookups against 50,000 rows, binary search took under 1ms At 1,000 rows the two methods tie at about 2.3ms, the gap only opens up past a few thousand Binary search needs a sorted array, so an unsorted catalog has to pay a one-time sort cost first One function…
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- 2026-10-09 08:39 · DEV Community — AI
Binary Search vs Array.includes() on a 50,000-Row Catalog