Example of *yield to pass proxy to another function compared to awaiting each next() value and applying a transformation before yielding

async-generator.js

// When you just need to pass through the value yield from another generator function use:
yield* generatorFunction();

// When you need to manipulate each yielded value
const generator = generatorFunction();
let next = await generator.next();
while (!next.done) {
  let value = next.value;
  // TODO apply any transformations to value here
  yield value;
  next = await generator.next();
}