10 lines
604 B
TypeScript
10 lines
604 B
TypeScript
import { Observable } from '../Observable';
|
|
/**
|
|
* Returns an Observable that emits the item at the specified index in the source Observable.
|
|
* If default is given, missing indices will output this value on next; otherwise, outputs error.
|
|
* @param {number} index the index of the value to be retrieved.
|
|
* @param {any} [defaultValue] the default value returned for missing indices.
|
|
* @returns {Observable} an Observable that emits a single item, if it is found. Otherwise, will emit the default value if given.
|
|
*/
|
|
export declare function elementAt<T>(index: number, defaultValue?: T): Observable<T>;
|