///
module Rx {
export interface Observable {
/**
* Filters the elements of an observable sequence based on a predicate by incorporating the element's index.
*
* @example
* var res = source.where(function (value) { return value < 10; });
* var res = source.where(function (value, index) { return value < 10 || index < 10; });
* @param {Function} predicate A function to test each source element for a condition; the second parameter of the function represents the index of the source element.
* @param {Any} [thisArg] Object to use as this when executing callback.
* @returns {Observable} An observable sequence that contains elements from the input sequence that satisfy the condition.
*/
where(predicate: _Predicate, thisArg?: any): Observable;
/**
* Filters the elements of an observable sequence based on a predicate by incorporating the element's index.
*
* @example
* var res = source.where(function (value) { return value < 10; });
* var res = source.where(function (value, index) { return value < 10 || index < 10; });
* @param {Function} predicate A function to test each source element for a condition; the second parameter of the function represents the index of the source element.
* @param {Any} [thisArg] Object to use as this when executing callback.
* @returns {Observable} An observable sequence that contains elements from the input sequence that satisfy the condition.
*/
filter(predicate: _Predicate, thisArg?: any): Observable;
}
}
(function () {
var o : Rx.Observable;
o = o.where(i => true);
o = o.where(i => true, {});
o = o.filter(i => true);
o = o.filter(i => true, {});
});