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- import { Observable } from '../Observable';
- /**
- * The Max operator operates on an Observable that emits numbers (or items that can be compared with a provided function),
- * and when source Observable completes it emits a single item: the item with the largest value.
- *
- * <img src="./img/max.png" width="100%">
- *
- * @example <caption>Get the maximal value of a series of numbers</caption>
- * Rx.Observable.of(5, 4, 7, 2, 8)
- * .max()
- * .subscribe(x => console.log(x)); // -> 8
- *
- * @example <caption>Use a comparer function to get the maximal item</caption>
- * interface Person {
- * age: number,
- * name: string
- * }
- * Observable.of<Person>({age: 7, name: 'Foo'},
- * {age: 5, name: 'Bar'},
- * {age: 9, name: 'Beer'})
- * .max<Person>((a: Person, b: Person) => a.age < b.age ? -1 : 1)
- * .subscribe((x: Person) => console.log(x.name)); // -> 'Beer'
- * }
- *
- * @see {@link min}
- *
- * @param {Function} [comparer] - Optional comparer function that it will use instead of its default to compare the
- * value of two items.
- * @return {Observable} An Observable that emits item with the largest value.
- * @method max
- * @owner Observable
- */
- export declare function max<T>(this: Observable<T>, comparer?: (x: T, y: T) => number): Observable<T>;
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