Run JavaScript on real background threads in React Native — no Workers, no Worklets. Uses Hermes on both iOS and Android, each on a dedicated OS-level thread. Built as a New Architecture TurboModule.

NOTE: This proposal has subsumed the Async Explicit Resource Management proposal. This proposal repository should be used for further discussion of both sync and async of explicit resource management.

If you've spent time working with JavaScript's asynchronous model, you know that its single-threaded nature is both a blessing and a curse. On one hand, you don't have to worry about complex locking ...

As developers, we know that the heart and soul of JavaScript lies in its intricate workings. And at the core of it all, we find the Event Loop—the most important and sometimes confusing part of ...