let resolve;
let promise = new Promise((r) => (resolve = r));
let iterable = {
  [Symbol.asyncIterator]() {
    return {
      next() {
        return promise;
      },
    };
  },
};

(async () => {
  for await (let value of iterable) {
    console.log(value);
  }

  // let iterator = iterable[Symbol.asyncIterator]();
  // while (true) {
  //   let result = await http://iterator.next();
  //   if (result.done) {
  //     break;
  //   }
  //   console.log(result.value);
  // }
})();

(async function () {
  for (let v of [0, 1]) {
    await null;
    let oldresolve = resolve;
    promise = new Promise((r) => (resolve = r));
    oldresolve({ value: v, done: false });
  }
  resolve({ value: undefined, done: true });
})();

{
  "presets": ["@babel/preset-typescript", "@parcel/babel-preset-env"],
  "plugins": [
    ["@parcel/babel-plugin-transform-runtime"],
    ["@babel/plugin-proposal-private-methods", { "loose": true }],
    ["@babel/plugin-proposal-class-properties", { "loose": true }],
  ],
};

0
1

0