JS Worker Multithreading

概要

This skill enables developers to implement robust multithreading patterns in JavaScript and TypeScript environments, focusing on offloading heavy computations from the main thread to ensure smooth UI performance. It provides patterns for managing worker pools, handling typed array transfers for zero-copy data movement, and managing concurrency with hardware-aware scaling. Whether building complex simulations, data processing pipelines, or high-performance graphics, this skill ensures thread safety and efficient resource utilization while maintaining the main thread as the authoritative source of truth for DOM and state management.

主な機能

• Implementation of scalable worker pools based on hardware concurrency limits.
• Main-thread state synchronization and deterministic result application.
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• Graceful degradation and fallback mechanisms for environments without worker support.
• Efficient data transfer using TypedArrays and Structured Clone patterns to minimize overhead.
• Performance optimization for CPU-heavy simulation loops and pure math kernels.

ユースケース

• Processing large datasets or complex calculations without blocking the browser UI or main loop.
• Moving physics or simulation math off the main thread in web-based games and visualizations.
• Implementing high-performance, non-blocking worker-based backends in Node.js environments.