Rx.Observable.prototype.select(selector, [thisArg])

Projects each element of an observable sequence into a new form by incorporating the element’s index. This is an alias for the map method.

参数

  1. selector (Function): Transform function to apply to each source element. The selector is called with the following information:
    1. the value of the element
    2. the index of the element
    3. the Observable object being subscribed
  2. [thisArg] (Any): Object to use as this when executing the predicate.

返回值

(Observable): An observable sequence which results from the comonadic bind operation.