Question 1

How do I pass data to a Greenlet function without using closure scope?

Accepted Answer

You must pass all necessary data as arguments to the function, since Greenlet executes it in an isolated worker context. For example, in the GitHub API example, the username is passed directly as a parameter.

Question 2

Greenlet vs workerize: which should I use?

Accepted Answer

Greenlet is a simplified single-function version of workerize, ideal for quick offloading of async tasks with minimal code. Workerize offers more features like module support and state management, so choose it for complex worker setups.

Question 3

How to optimize Greenlet for large data transfers?

Accepted Answer

Use transferable objects like ArrayBuffers as arguments or return values, as Greenlet automatically optimizes them for zero-copy performance. Ensure inputs and outputs are small to avoid message-passing overhead.

Question 4

Does Greenlet work with React or Vue components?

Accepted Answer

Yes, but you need to manage the async calls properly—for instance, by using effects or lifecycle methods to call greenlet functions and update state. Remember that functions can't rely on component scope, so pass data explicitly.

Question 5

What happens if a Greenlet function throws an error?

Accepted Answer

Errors propagate as promise rejections from the workerized function, so you should handle them with try-catch or .catch() on the returned promise, similar to standard async functions.

Question 6

Can I run multiple Greenlet functions concurrently?

Accepted Answer

Yes, each greenlet instance runs in its own Web Worker, allowing parallelism. However, avoid creating too many dynamically to prevent resource exhaustion, as noted in the README's warning.

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