How does React Native handle memory management and what causes memory leaks?
Updated May 6, 2026
Short answer
React Native relies on JS garbage collection, but leaks happen when references prevent cleanup of objects, listeners, or closures.
Deep explanation
React Native memory management is primarily handled by the JavaScript engine (Hermes or JSC) using garbage collection. However, memory leaks occur when objects remain referenced unintentionally. Common sources include event listeners not removed, timers not cleared, large closures capturing unnecessary variables, and retaining state in global stores. Native modules can also leak memory if not properly released.
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