Efficiently Converting a jsi::Array to a C++ std::vector Without Explicit Loops

[shivamst11]

Hi everyone,

I'm working on a project where I need to convert a jsi::Array into a C++ std::vector. The array could potentially be quite large, so I'm concerned about the performance implications of using explicit loops for this conversion.

I'm looking for a best practices to handle this situation. Any insights or code snippets would be greatly appreciated!

Thank you!

[tmikov]

Hi! A jsi::Array can contain any kind of elements, including objects managed by the GC, so it is generally not safe to copy them into a std::vector. It could work if the array contained only numbers, but that is a very specific case, so there isn't an optimized API for it.

However, if you need only numbers, I think it would be much more efficient to use an ArrayBuffer and copy from the underlying data pointer directly.

[shivamst11]

Thanks for your response.

now i am passing ArrayBuffer from js to module and using it, and it solved my problem.