astro/dist/runtime/server/util.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

export function isPromise(value) {
	return typeof value === "object" && value !== null && typeof value.then === "function";
}
export async function* streamAsyncIterator(stream) {
	const reader = stream.getReader();
	try {
		while (true) {
			const { done, value } = await reader.read();
			if (done) return;
			yield value;
		}
	} finally {
		reader.releaseLock();
	}
}