Escape the Event Loop: How Node.js Worker Threads Solve Blocking Issues

Node.js's single-threaded JavaScript execution model creates a critical bottleneck for CPU-intensive operations—a single heavy computation can freeze the entire event loop and degrade server responsiveness. This comprehensive guide reveals how Worker Threads with isolated V8 Isolates and message-based communication enable developers to offload blocking tasks safely, maintaining server performance while handling demanding workloads.