Emanuele Feronato • 1/19/2026

Understanding QuadTrees: organizing space to reduce unnecessary work

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This article provides a detailed introduction to QuadTrees, a hierarchical spatial data structure used to organize objects in 2D space. It explains the core problem of inefficient linear searches, how QuadTrees subdivide space based on object density, and how they optimize queries for tasks like collision detection and area selection in games, physics simulations, and DOM interfaces.

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#JavaScript #performance optimization #game development
Understanding QuadTrees: organizing space to reduce unnecessary work

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