feat(operators): update examples to rxjs 6

SUMMARY.md

@@ -2,102 +2,101 @@
 
 ### Learn RxJS
 
-* [Operators](/operators/README.md)
-  * [Combination](/operators/combination/README.md)
-    * [combineAll](/operators/combination/combineall.md)
-    * [combineLatest](/operators/combination/combinelatest.md)
-    * [concat](/operators/combination/concat.md)
-    * [concatAll](/operators/combination/concatall.md)
-    * [forkJoin](/operators/combination/forkjoin.md)
-    * [merge](/operators/combination/merge.md)
-    * [mergeAll](/operators/combination/mergeall.md)
-    * [pairwise](/operators/combination/pairwise.md)
-    * [race](/operators/combination/race.md)
-    * [startWith](/operators/combination/startwith.md)
-    * [withLatestFrom](/operators/combination/withlatestfrom.md)
-    * [zip](/operators/combination/zip.md)
-  * [Conditional](/operators/conditional/README.md)
-    * [defaultIfEmpty](/operators/conditional/defaultifempty.md)
-    * [every](/operators/conditional/every.md)
-  * [Creation](/operators/creation/README.md)
-    * [create](/operators/creation/create.md)
-    * [empty](/operators/creation/empty.md)
-    * [from](/operators/creation/from.md)
-    * [fromEvent](/operators/creation/fromevent.md)
-    * [fromPromise](/operators/creation/frompromise.md)
-    * [interval](/operators/creation/interval.md)
-    * [of](/operators/creation/of.md)
-    * [range](/operators/creation/range.md)
-    * [throw](/operators/creation/throw.md)
-    * [timer](/operators/creation/timer.md)
-  * [Error Handling](/operators/error_handling/README.md)
-    * [catch / catchError](/operators/error_handling/catch.md)
-    * [retry](/operators/error_handling/retry.md)
-    * [retryWhen](/operators/error_handling/retrywhen.md)
-  * [Multicasting](/operators/multicasting/README.md)
-    * [publish](/operators/multicasting/publish.md)
-    * [multicast](/operators/multicasting/multicast.md)
-    * [share](/operators/multicasting/share.md)
-    * [shareReplay](/operators/multicasting/sharereplay.md)
-  * [Filtering](/operators/filtering/README.md)
-    * [audit](/operators/filtering/audit.md)
-    * [auditTime](/operators/filtering/audittime.md)
-    * [debounce](/operators/filtering/debounce.md)
-    * [debounceTime](/operators/filtering/debouncetime.md)
-    * [distinctUntilChanged](/operators/filtering/distinctuntilchanged.md)
-    * [filter](/operators/filtering/filter.md)
-    * [first](/operators/filtering/first.md)
-    * [ignoreElements](/operators/filtering/ignoreelements.md)
-    * [last](/operators/filtering/last.md)
-    * [sample](/operators/filtering/sample.md)
-    * [single](/operators/filtering/single.md)
-    * [skip](/operators/filtering/skip.md)
-    * [skipUntil](/operators/filtering/skipuntil.md)
-    * [skipWhile](/operators/filtering/skipwhile.md)
-    * [take](/operators/filtering/take.md)
-    * [takeUntil](/operators/filtering/takeuntil.md)
-    * [takeWhile](/operators/filtering/takewhile.md)
-    * [throttle](/operators/filtering/throttle.md)
-    * [throttleTime](/operators/filtering/throttletime.md)
-  * [Transformation](/operators/transformation/README.md)
-    * [buffer](/operators/transformation/buffer.md)
-    * [bufferCount](/operators/transformation/buffercount.md)
-    * [bufferTime](/operators/transformation/buffertime.md)
-    * [bufferToggle](/operators/transformation/buffertoggle.md)
-    * [bufferWhen](/operators/transformation/bufferwhen.md)
-    * [concatMap](/operators/transformation/concatmap.md)
-    * [concatMapTo](/operators/transformation/concatmapto.md)
-    * [exhaustMap](/operators/transformation/exhaustmap.md)
-    * [expand](/operators/transformation/expand.md)
-    * [groupBy](/operators/transformation/groupby.md)
-    * [map](/operators/transformation/map.md)
-    * [mapTo](/operators/transformation/mapto.md)
-    * [mergeMap / flatMap](/operators/transformation/mergemap.md)
-    * [partition](/operators/transformation/partition.md)
-    * [pluck](/operators/transformation/pluck.md)
-    * [reduce](/operators/transformation/reduce.md)
-    * [scan](/operators/transformation/scan.md)
-    * [switchMap](/operators/transformation/switchmap.md)
-    * [window](/operators/transformation/window.md)
-    * [windowCount](/operators/transformation/windowcount.md)
-    * [windowTime](/operators/transformation/windowtime.md)
-    * [windowToggle](/operators/transformation/windowtoggle.md)
-    * [windowWhen](/operators/transformation/windowwhen.md)
-  * [Utility](/operators/utility/README.md)
-    * [do / tap](/operators/utility/do.md)
-    * [delay](/operators/utility/delay.md)
-    * [delayWhen](/operators/utility/delaywhen.md)
-    * [dematerialize](/operators/utility/dematerialize.md)
-    * [finalize / finally](operators/utility/finalize.md)
-    * [let](/operators/utility/let.md)
-    * [timeout](/operators/utility/timeout.md)
-    * [toPromise](/operators/utility/topromise.md)
-  * [Full Listing](/operators/complete.md)
-* [Recipes](/recipes/README.md)
-  * [Http Polling](/recipes/http-polling.md)
-  * [Game Loop](/recipes/gameloop.md)
-  * [Progress Bar](/recipes/progressbar.md)
-  * [Smart Counter](/recipes/smartcounter.md)
-* [Concepts](/concepts/README.md)
-  * [RxJS v5 -> v6 Upgrade](/concepts/rxjs5-6.md)
-  * [Understanding Operator Imports](/concepts/operator-imports.md)
+- [Operators](/operators/README.md)
+  - [Combination](/operators/combination/README.md)
+    - [combineAll](/operators/combination/combineall.md)
+    - [combineLatest](/operators/combination/combinelatest.md)
+    - [concat](/operators/combination/concat.md)
+    - [concatAll](/operators/combination/concatall.md)
+    - [forkJoin](/operators/combination/forkjoin.md)
+    - [merge](/operators/combination/merge.md)
+    - [mergeAll](/operators/combination/mergeall.md)
+    - [pairwise](/operators/combination/pairwise.md)
+    - [race](/operators/combination/race.md)
+    - [startWith](/operators/combination/startwith.md)
+    - [withLatestFrom](/operators/combination/withlatestfrom.md)
+    - [zip](/operators/combination/zip.md)
+  - [Conditional](/operators/conditional/README.md)
+    - [defaultIfEmpty](/operators/conditional/defaultifempty.md)
+    - [every](/operators/conditional/every.md)
+  - [Creation](/operators/creation/README.md)
+    - [create](/operators/creation/create.md)
+    - [empty](/operators/creation/empty.md)
+    - [from](/operators/creation/from.md)
+    - [fromEvent](/operators/creation/fromevent.md)
+    - [interval](/operators/creation/interval.md)
+    - [of](/operators/creation/of.md)
+    - [range](/operators/creation/range.md)
+    - [throw](/operators/creation/throw.md)
+    - [timer](/operators/creation/timer.md)
+  - [Error Handling](/operators/error_handling/README.md)
+    - [catch / catchError](/operators/error_handling/catch.md)
+    - [retry](/operators/error_handling/retry.md)
+    - [retryWhen](/operators/error_handling/retrywhen.md)
+  - [Multicasting](/operators/multicasting/README.md)
+    - [publish](/operators/multicasting/publish.md)
+    - [multicast](/operators/multicasting/multicast.md)
+    - [share](/operators/multicasting/share.md)
+    - [shareReplay](/operators/multicasting/sharereplay.md)
+  - [Filtering](/operators/filtering/README.md)
+    - [audit](/operators/filtering/audit.md)
+    - [auditTime](/operators/filtering/audittime.md)
+    - [debounce](/operators/filtering/debounce.md)
+    - [debounceTime](/operators/filtering/debouncetime.md)
+    - [distinctUntilChanged](/operators/filtering/distinctuntilchanged.md)
+    - [filter](/operators/filtering/filter.md)
+    - [first](/operators/filtering/first.md)
+    - [ignoreElements](/operators/filtering/ignoreelements.md)
+    - [last](/operators/filtering/last.md)
+    - [sample](/operators/filtering/sample.md)
+    - [single](/operators/filtering/single.md)
+    - [skip](/operators/filtering/skip.md)
+    - [skipUntil](/operators/filtering/skipuntil.md)
+    - [skipWhile](/operators/filtering/skipwhile.md)
+    - [take](/operators/filtering/take.md)
+    - [takeUntil](/operators/filtering/takeuntil.md)
+    - [takeWhile](/operators/filtering/takewhile.md)
+    - [throttle](/operators/filtering/throttle.md)
+    - [throttleTime](/operators/filtering/throttletime.md)
+  - [Transformation](/operators/transformation/README.md)
+    - [buffer](/operators/transformation/buffer.md)
+    - [bufferCount](/operators/transformation/buffercount.md)
+    - [bufferTime](/operators/transformation/buffertime.md)
+    - [bufferToggle](/operators/transformation/buffertoggle.md)
+    - [bufferWhen](/operators/transformation/bufferwhen.md)
+    - [concatMap](/operators/transformation/concatmap.md)
+    - [concatMapTo](/operators/transformation/concatmapto.md)
+    - [exhaustMap](/operators/transformation/exhaustmap.md)
+    - [expand](/operators/transformation/expand.md)
+    - [groupBy](/operators/transformation/groupby.md)
+    - [map](/operators/transformation/map.md)
+    - [mapTo](/operators/transformation/mapto.md)
+    - [mergeMap / flatMap](/operators/transformation/mergemap.md)
+    - [partition](/operators/transformation/partition.md)
+    - [pluck](/operators/transformation/pluck.md)
+    - [reduce](/operators/transformation/reduce.md)
+    - [scan](/operators/transformation/scan.md)
+    - [switchMap](/operators/transformation/switchmap.md)
+    - [window](/operators/transformation/window.md)
+    - [windowCount](/operators/transformation/windowcount.md)
+    - [windowTime](/operators/transformation/windowtime.md)
+    - [windowToggle](/operators/transformation/windowtoggle.md)
+    - [windowWhen](/operators/transformation/windowwhen.md)
+  - [Utility](/operators/utility/README.md)
+    - [do / tap](/operators/utility/do.md)
+    - [delay](/operators/utility/delay.md)
+    - [delayWhen](/operators/utility/delaywhen.md)
+    - [dematerialize](/operators/utility/dematerialize.md)
+    - [finalize / finally](operators/utility/finalize.md)
+    - [let](/operators/utility/let.md)
+    - [timeout](/operators/utility/timeout.md)
+    - [toPromise](/operators/utility/topromise.md)
+  - [Full Listing](/operators/complete.md)
+- [Recipes](/recipes/README.md)
+  - [Http Polling](/recipes/http-polling.md)
+  - [Game Loop](/recipes/gameloop.md)
+  - [Progress Bar](/recipes/progressbar.md)
+  - [Smart Counter](/recipes/smartcounter.md)
+- [Concepts](/concepts/README.md)
+  - [RxJS v5 -> v6 Upgrade](/concepts/rxjs5-6.md)
+  - [Understanding Operator Imports](/concepts/operator-imports.md)

operators/README.md

@@ -7,99 +7,98 @@ _[Prefer a complete list in alphabetical order?](complete.md)_
 
 ### Contents (By Operator Type)
 
-* [Combination](combination/README.md)
-  * [combineAll](combination/combineall.md)
-  * [combineLatest](combination/combinelatest.md) :star:
-  * [concat](combination/concat.md) :star:
-  * [concatAll](combination/concatall.md)
-  * [forkJoin](combination/forkjoin.md)
-  * [merge](combination/merge.md) :star:
-  * [mergeAll](combination/mergeall.md)
-  * [race](combination/race.md)
-  * [startWith](combination/startwith.md) :star:
-  * [withLatestFrom](combination/withlatestfrom.md) :star:
-  * [zip](combination/zip.md)
-* [Conditional](conditional/README.md)
-  * [defaultIfEmpty](conditional/defaultifempty.md)
-  * [every](conditional/every.md)
-* [Creation](creation/README.md)
-  * [create](creation/create.md)
-  * [empty](creation/empty.md)
-  * [from](creation/from.md) :star:
-  * [fromEvent](creation/fromevent.md)
-  * [fromPromise](creation/frompromise.md) :star:
-  * [interval](creation/interval.md)
-  * [of](creation/of.md) :star:
-  * [range](creation/range.md)
-  * [throw](creation/throw.md)
-  * [timer](creation/timer.md)
-* [Error Handling](error_handling/README.md)
-  * [catch / catchError](error_handling/catch.md) :star:
-  * [retry](error_handling/retry.md)
-  * [retryWhen](error_handling/retrywhen.md)
-* [Filtering](filtering/README.md)
-  * [audit](filtering/audit.md)
-  * [auditTime](filtering/audittime.md)
-  * [debounce](filtering/debounce.md)
-  * [debounceTime](filtering/debouncetime.md) :star:
-  * [distinctUntilChanged](filtering/distinctuntilchanged.md) :star:
-  * [filter](filtering/filter.md) :star:
-  * [first](filtering/first.md)
-  * [ignoreElements](filtering/ignoreelements.md)
-  * [last](filtering/last.md)
-  * [sample](filtering/sample.md)
-  * [single](filtering/single.md)
-  * [skip](filtering/skip.md)
-  * [skipUntil](filtering/skipuntil.md)
-  * [skipWhile](filtering/skipwhile.md)
-  * [take](filtering/take.md) :star:
-  * [takeUntil](filtering/takeuntil.md) :star:
-  * [takeWhile](filtering/takewhile.md)
-  * [throttle](filtering/throttle.md)
-  * [throttleTime](filtering/throttletime.md)
-* [Multicasting](multicasting/README.md)
-  * [multicast](multicasting/multicast.md)
-  * [publish](multicasting/publish.md)
-  * [share](multicasting/share.md) :star:
-  * [shareReplay](multicasting/sharereplay.md) :star:
-* [Transformation](transformation/README.md)
-  * [buffer](transformation/buffer.md)
-  * [bufferCount](transformation/buffercount.md)
-  * [bufferTime](transformation/buffertime.md) :star:
-  * [bufferToggle](transformation/buffertoggle.md)
-  * [bufferWhen](transformation/bufferwhen.md)
-  * [concatMap](transformation/concatmap.md) :star:
-  * [concatMapTo](transformation/concatmapto.md)
-  * [expand](transformation/expand.md)
-  * [exhaustMap](transformation/exhaustmap.md)
-  * [groupBy](transformation/groupby.md)
-  * [map](transformation/map.md) :star:
-  * [mapTo](transformation/mapto.md)
-  * [mergeMap / flatMap](transformation/mergemap.md) :star:
-  * [partition](transformation/partition.md)
-  * [pluck](transformation/pluck.md)
-  * [reduce](transformation/reduce.md)
-  * [scan](transformation/scan.md) :star:
-  * [switchMap](transformation/switchmap.md) :star:
-  * [window](transformation/window.md)
-  * [windowCount](transformation/windowcount.md)
-  * [windowTime](transformation/windowtime.md)
-  * [windowToggle](transformation/windowtoggle.md)
-  * [windowWhen](transformation/windowwhen.md)
-* [Utility](utility/README.md)
-  * [do / tap](utility/do.md) :star:
-  * [delay](utility/delay.md)
-  * [delayWhen](utility/delaywhen.md)
-  * [finalize / finally](finalize.md)
-  * [let](utility/let.md)
-  * [toPromise](utility/topromise.md)
-  * [timeout](utility/timeout.md)
+- [Combination](combination/README.md)
+  - [combineAll](combination/combineall.md)
+  - [combineLatest](combination/combinelatest.md) :star:
+  - [concat](combination/concat.md) :star:
+  - [concatAll](combination/concatall.md)
+  - [forkJoin](combination/forkjoin.md)
+  - [merge](combination/merge.md) :star:
+  - [mergeAll](combination/mergeall.md)
+  - [race](combination/race.md)
+  - [startWith](combination/startwith.md) :star:
+  - [withLatestFrom](combination/withlatestfrom.md) :star:
+  - [zip](combination/zip.md)
+- [Conditional](conditional/README.md)
+  - [defaultIfEmpty](conditional/defaultifempty.md)
+  - [every](conditional/every.md)
+- [Creation](creation/README.md)
+  - [create](creation/create.md)
+  - [empty](creation/empty.md)
+  - [from](creation/from.md) :star:
+  - [fromEvent](creation/fromevent.md)
+  - [interval](creation/interval.md)
+  - [of](creation/of.md) :star:
+  - [range](creation/range.md)
+  - [throw](creation/throw.md)
+  - [timer](creation/timer.md)
+- [Error Handling](error_handling/README.md)
+  - [catch / catchError](error_handling/catch.md) :star:
+  - [retry](error_handling/retry.md)
+  - [retryWhen](error_handling/retrywhen.md)
+- [Filtering](filtering/README.md)
+  - [audit](filtering/audit.md)
+  - [auditTime](filtering/audittime.md)
+  - [debounce](filtering/debounce.md)
+  - [debounceTime](filtering/debouncetime.md) :star:
+  - [distinctUntilChanged](filtering/distinctuntilchanged.md) :star:
+  - [filter](filtering/filter.md) :star:
+  - [first](filtering/first.md)
+  - [ignoreElements](filtering/ignoreelements.md)
+  - [last](filtering/last.md)
+  - [sample](filtering/sample.md)
+  - [single](filtering/single.md)
+  - [skip](filtering/skip.md)
+  - [skipUntil](filtering/skipuntil.md)
+  - [skipWhile](filtering/skipwhile.md)
+  - [take](filtering/take.md) :star:
+  - [takeUntil](filtering/takeuntil.md) :star:
+  - [takeWhile](filtering/takewhile.md)
+  - [throttle](filtering/throttle.md)
+  - [throttleTime](filtering/throttletime.md)
+- [Multicasting](multicasting/README.md)
+  - [multicast](multicasting/multicast.md)
+  - [publish](multicasting/publish.md)
+  - [share](multicasting/share.md) :star:
+  - [shareReplay](multicasting/sharereplay.md) :star:
+- [Transformation](transformation/README.md)
+  - [buffer](transformation/buffer.md)
+  - [bufferCount](transformation/buffercount.md)
+  - [bufferTime](transformation/buffertime.md) :star:
+  - [bufferToggle](transformation/buffertoggle.md)
+  - [bufferWhen](transformation/bufferwhen.md)
+  - [concatMap](transformation/concatmap.md) :star:
+  - [concatMapTo](transformation/concatmapto.md)
+  - [expand](transformation/expand.md)
+  - [exhaustMap](transformation/exhaustmap.md)
+  - [groupBy](transformation/groupby.md)
+  - [map](transformation/map.md) :star:
+  - [mapTo](transformation/mapto.md)
+  - [mergeMap / flatMap](transformation/mergemap.md) :star:
+  - [partition](transformation/partition.md)
+  - [pluck](transformation/pluck.md)
+  - [reduce](transformation/reduce.md)
+  - [scan](transformation/scan.md) :star:
+  - [switchMap](transformation/switchmap.md) :star:
+  - [window](transformation/window.md)
+  - [windowCount](transformation/windowcount.md)
+  - [windowTime](transformation/windowtime.md)
+  - [windowToggle](transformation/windowtoggle.md)
+  - [windowWhen](transformation/windowwhen.md)
+- [Utility](utility/README.md)
+  - [do / tap](utility/do.md) :star:
+  - [delay](utility/delay.md)
+  - [delayWhen](utility/delaywhen.md)
+  - [finalize / finally](finalize.md)
+  - [let](utility/let.md)
+  - [toPromise](utility/topromise.md)
+  - [timeout](utility/timeout.md)
 
 :star: - _commonly used_
 
 ### Additional Resources
 
-* [What Are Operators?](http://reactivex.io/rxjs/manual/overview.html#operators)
+- [What Are Operators?](http://reactivex.io/rxjs/manual/overview.html#operators)
   :newspaper: - Official Docs
-* [What Operators Are](https://egghead.io/lessons/rxjs-what-rxjs-operators-are)
+- [What Operators Are](https://egghead.io/lessons/rxjs-what-rxjs-operators-are)
   :video_camera: :dollar: - André Staltz

operators/combination/combineall.md

@@ -19,6 +19,7 @@
 )
 
 ```js
+// RxJS v6+
 import { take, map, combineAll } from 'rxjs/operators';
 import { interval } from 'rxjs';