AsyncGeneratorFunction - JavaScript

AsyncGeneratorFunction - JavaScript | MDN

Try it

const AsyncGeneratorFunction = async function* () {}.constructor;

const foo = new AsyncGeneratorFunction(`
  yield await Promise.resolve('a');
  yield await Promise.resolve('b');
  yield await Promise.resolve('c');
`);

let str = "";

async function generate() {
  for await (const val of foo()) {
    str += val;
  }
  console.log(str);
}

generate();
// Expected output: "abc"

Constructor

AsyncGeneratorFunction(): Creates a new AsyncGeneratorFunction object.

Instance properties

Also inherits instance properties from its parent Function.

These properties are defined on AsyncGeneratorFunction.prototype and shared by all AsyncGeneratorFunction instances.

AsyncGeneratorFunction.prototype.constructor: The constructor function that created the instance object. For AsyncGeneratorFunction instances, the initial value is the AsyncGeneratorFunction constructor.
AsyncGeneratorFunction.prototype.prototype: All async generator functions share the same prototype property, which is AsyncGenerator.prototype. Each async generator function created with the async function* syntax or the AsyncGeneratorFunction() constructor also has its own prototype property, whose prototype is AsyncGeneratorFunction.prototype.prototype. When the async generator function is called, its prototype property becomes the prototype of the returned async generator object.
AsyncGeneratorFunction.prototype[Symbol.toStringTag]: The initial value of the [Symbol.toStringTag] property is the string "AsyncGeneratorFunction". This property is used in Object.prototype.toString().