Answer
GC pauses can affect latency. Optimize by reducing object churn, using pooling, limiting memory consumption, and tuning V8 GC flags for performance.
Quick Answer
V8's garbage collector (GC) pauses JS execution to collect unreachable objects. Short pauses (minor GC for the young generation) are nearly imperceptible. Full GC (major/compaction) can pause for tens of milliseconds. In production, avoid creating excessive short-lived objects, pre-allocate large buffers, and monitor heap size to catch leaks before they cause GC pressure.
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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.
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Source: SugharaIQ