message: docs(toArray): added description and example for toArray
diff: @@ -9,6 +9,37 @@ function toArrayReducer<T>(arr: T[], item: T, index: number) {
  return arr;
  }
  +/**
  + * Collects all source emissions and emits them as an array when the source completes.
  + *
  + * <span class="informal">Get all values inside an array when the source completes</span>
  + *
  + * ![](toArray.png)
  + *
  + * `toArray` will wait until the source Observable completes before emitting
  + * the array containing all emissions. When the source Observable errors no
  + * array will be emitted.
  + *
  + * ## Example
  + * ```ts
  + * import { interval } from 'rxjs';
  + * import { toArray, take } from 'rxjs/operators';
  + *
  + * const source = interval(1000);
  + * const example = source.pipe(
  + * take(10),
  + * toArray()
  + * );
  + *
  + * const subscribe = example.subscribe(val => console.log(val));
  + *
  + * // output: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  + *
  + * ```
  +* @return An array from an observable sequence.
  +* @method toArray
  +* @owner Observable
  +*/
  export function toArray<T>(): OperatorFunction<T, T[]> {
  return reduce(toArrayReducer, [] as T[]);
  }
  