@babel/plugin-transform-async-generator-functions

Transformation of async generator functions

This feature allows developers to write async generator functions, which are then transformed into code that can be executed in environments that do not support async generators natively.

async function* asyncGenerator() {
  var i = 0;
  while (i < 3) {
    yield i++;
  }
}

Transformation of for-await loops

This feature enables the use of for-await loops to iterate over async iterable objects, which is transformed into a series of promise resolutions compatible with older JavaScript engines.

async function iterateAsyncGenerator() {
  for await (const num of asyncGenerator()) {
    console.log(num);
  }
}