| 1 | import { AsyncIterableX } from './asynciterablex';
|
| 2 | import { bindCallback } from '../internal/bindcallback';
|
| 3 | export class FlatMapAsyncIterable extends AsyncIterableX {
|
| 4 | constructor(source, selector) {
|
| 5 | super();
|
| 6 | this._source = source;
|
| 7 | this._selector = selector;
|
| 8 | }
|
| 9 | async *[Symbol.asyncIterator]() {
|
| 10 | for await (let outer of this._source) {
|
| 11 | const inners = await this._selector(outer);
|
| 12 | for await (let inner of inners) {
|
| 13 | yield inner;
|
| 14 | }
|
| 15 | }
|
| 16 | }
|
| 17 | }
|
| 18 | export function flatMap(source, selector, thisArg) {
|
| 19 | return new FlatMapAsyncIterable(source, bindCallback(selector, thisArg, 1));
|
| 20 | }
|
| 21 |
|
| 22 |
|