39 lines
1.8 KiB
TypeScript
39 lines
1.8 KiB
TypeScript
/**
|
|
* @license
|
|
* Copyright 2017 Google LLC
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
import { ChildPart, noChange } from '../lit-html.js';
|
|
import { AsyncDirective, DirectiveParameters } from '../async-directive.js';
|
|
declare type Mapper<T> = (v: T, index?: number) => unknown;
|
|
export declare class AsyncReplaceDirective extends AsyncDirective {
|
|
private __value?;
|
|
private __weakThis;
|
|
private __pauser;
|
|
render<T>(value: AsyncIterable<T>, _mapper?: Mapper<T>): symbol;
|
|
update(_part: ChildPart, [value, mapper]: DirectiveParameters<this>): typeof noChange | undefined;
|
|
protected commitValue(value: unknown, _index: number): void;
|
|
disconnected(): void;
|
|
reconnected(): void;
|
|
}
|
|
/**
|
|
* 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. This directive may be used in any expression type.
|
|
*
|
|
* 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://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for-await...of
|
|
*
|
|
* @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: (value: AsyncIterable<unknown>, _mapper?: Mapper<unknown> | undefined) => import("../directive.js").DirectiveResult<typeof AsyncReplaceDirective>;
|
|
export {};
|
|
//# sourceMappingURL=async-replace.d.ts.map
|