| /** PURE_IMPORTS_START ._reduce PURE_IMPORTS_END */ |
| import { reduce } from './reduce'; |
| /** |
| * 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 function max(comparer) { |
| var max = (typeof comparer === 'function') |
| ? function (x, y) { return comparer(x, y) > 0 ? x : y; } |
| : function (x, y) { return x > y ? x : y; }; |
| return reduce(max); |
| } |
| //# sourceMappingURL=max.js.map |