| /** |
| * @license |
| * Copyright (c) 2017 The Polymer Project Authors. All rights reserved. |
| * This code may only be used under the BSD style license found at |
| * http://polymer.github.io/LICENSE.txt |
| * The complete set of authors may be found at |
| * http://polymer.github.io/AUTHORS.txt |
| * The complete set of contributors may be found at |
| * http://polymer.github.io/CONTRIBUTORS.txt |
| * Code distributed by Google as part of the polymer project is also |
| * subject to an additional IP rights grant found at |
| * http://polymer.github.io/PATENTS.txt |
| */ |
| import { Part } from '../lit-html.js'; |
| /** |
| * A directive that renders the items of an async iterable[1], replacing |
| * previous values with new values, so that only one value is ever rendered |
| * at a time. |
| * |
| * Async iterables are objects with a [Symbol.asyncIterator] method, which |
| * returns an iterator who's `next()` method returns a Promise. When a new |
| * value is available, the Promise resolves and the value is rendered to the |
| * Part controlled by the directive. If another value other than this |
| * directive has been set on the Part, the iterable will no longer be listened |
| * to and new values won't be written to the Part. |
| * |
| * [1]: https://github.com/tc39/proposal-async-iteration |
| * |
| * @param value An async iterable |
| * @param mapper An optional function that maps from (value, index) to another |
| * value. Useful for generating templates for each item in the iterable. |
| */ |
| export declare const asyncReplace: <T>(value: AsyncIterable<T>, mapper?: ((v: T, index?: number | undefined) => unknown) | undefined) => (part: Part) => Promise<void>; |
| //# sourceMappingURL=async-replace.d.ts.map |