Answer
Use SharedArrayBuffer and Atomics with CAS operations to avoid locks. Carefully design non-blocking structures to prevent race conditions and ensure progress without mutual exclusion.
Quick Answer
True lock-free algorithms in Node.js: since JS is single-threaded, simple reads and writes within one thread are inherently atomic. For cross-worker coordination, use SharedArrayBuffer with Atomics (compareExchange, add, wait) — these are true hardware-level atomic operations. Implement lock-free queues using Atomics.compareExchange for the head/tail indices.
S
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