d2-ui
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text/typescript
/// <reference path="./groupbyuntil.ts" />
module Rx {
export interface Observable<T> {
/**
* Groups the elements of an observable sequence according to a specified key selector function and comparer and selects the resulting elements by using a specified function.
*
* @example
* var res = observable.groupBy(function (x) { return x.id; });
* 2 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; });
* 3 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; }, function (x) { return x.toString(); });
* @param {Function} keySelector A function to extract the key for each element.
* @param {Function} [elementSelector] A function to map each source element to an element in an observable group.
* @returns {Observable} A sequence of observable groups, each of which corresponds to a unique key value, containing all elements that share that same key value.
*/
groupBy<TKey, TElement>(keySelector: (value: T) => TKey, skipElementSelector?: boolean, keySerializer?: (key: TKey) => string): Observable<GroupedObservable<TKey, T>>;
/**
* Groups the elements of an observable sequence according to a specified key selector function and comparer and selects the resulting elements by using a specified function.
*
* @example
* var res = observable.groupBy(function (x) { return x.id; });
* 2 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; });
* 3 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; }, function (x) { return x.toString(); });
* @param {Function} keySelector A function to extract the key for each element.
* @param {Function} [elementSelector] A function to map each source element to an element in an observable group.
* @returns {Observable} A sequence of observable groups, each of which corresponds to a unique key value, containing all elements that share that same key value.
*/
groupBy<TKey, TElement>(keySelector: (value: T) => TKey, elementSelector: (value: T) => TElement, keySerializer?: (key: TKey) => string): Observable<GroupedObservable<TKey, TElement>>;
}
}