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

    In

    1. var _asyncGenerator = ...
    3. let agf = (() => {
    4.   var _ref = _asyncGenerator.wrap(function* () {
    5.     yield _asyncGenerator.await(1);
    6.     yield 2;
    7.   });
    9.   return function agf() {
    10.   };
    11. })();

    For await example

    1. async function* genAnswers() {
    3.   var total = 0;
    4.   for await (let val of stream) {
    5.     total += await val;
    6.     yield total;
    7.   }
    8. }
    10. function forEach(ai, fn) {
    11.   return ai.next().then(function(r) {
    12.     if (!r.done) {
    13.       fn(r);
    14.       return forEach(ai, fn);
    16. }
    18. var output = 0;
    19. forEach(genAnswers(), function(val) {
    20.   output += val.value;
    21. }).then(function() {
    22.   console.log(output); // 42
    23. });

    Try it Out in the REPL

    1. {
    2.   "plugins": ["@babel/plugin-proposal-async-generator-functions"]
    3. }
    1. require("@babel/core").transformSync("code", {
    2.   plugins: ["@babel/plugin-proposal-async-generator-functions"],