JavaScript Development: Making a Web Worker optional

In case you have a lot of JavaScript related logic running inside a main thread or a Web Worker, it makes perfect sense to move expensive logic into another worker. Workers run inside a different thread using their own CPU if possible. However, there can be use cases where in some scenarios there is a lot of JS related workload on a given thread, while in other scenarios this thread is mostly idle

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重たいロジックを別のWeb Workerで分けることには意味があるが、スレッドがほとんどアイドル状態の場合にWorkerを分けるとpostMessage分の遅延が発生してしまう。 Workerとして分けて実行していた処理を、同じAPIを維持しつつ同