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  1. Reactive extensions
  2. RxJS

RxJS Operators

Categories of operators

There are operators for different purposes, and they may be categorized as: creation, transformation, filtering, joining, multicasting, error handling, utility, etc. In the following list you will find all the operators organized in categories.

For a complete overview, see the references page.

Creation Operators

  • ajax

  • bindCallback

  • bindNodeCallback

  • defer

  • empty

  • from

  • fromEvent

  • fromEventPattern

  • generate

  • interval

  • of

  • range

  • throwError

  • timer

  • iif

Join Creation Operators

These are Observable creation operators that also have join functionality -- emitting values of multiple source Observables.

  • combineLatest

  • concat

  • forkJoin

  • merge

  • partition

  • race

  • zip

Transformation Operators

  • buffer

  • bufferCount

  • bufferTime

  • bufferToggle

  • bufferWhen

  • concatMap

  • concatMapTo

  • exhaust

  • exhaustMap

  • expand

  • groupBy

  • map

  • mapTo

  • mergeMap

  • mergeMapTo

  • mergeScan

  • pairwise

  • partition

  • pluck

  • scan

  • switchMap

  • switchMapTo

  • window

  • windowCount

  • windowTime

  • windowToggle

  • windowWhen

Filtering Operators

  • audit

  • auditTime

  • debounce

  • debounceTime

  • distinct

  • distinctKey

  • distinctUntilChanged

  • distinctUntilKeyChanged

  • elementAt

  • filter

  • first

  • ignoreElements

  • last

  • sample

  • sampleTime

  • single

  • skip

  • skipLast

  • skipUntil

  • skipWhile

  • take

  • takeLast

  • takeUntil

  • takeWhile

  • throttle

  • throttleTime

Join Operators

Also see the Join Creation Operators section above.

  • combineAll

  • concatAll

  • exhaust

  • mergeAll

  • startWith

  • withLatestFrom

Multicasting Operators

  • multicast

  • publish

  • publishBehavior

  • publishLast

  • publishReplay

  • share

Error Handling Operators

  • catchError

  • retry

  • retryWhen

Utility Operators

  • tap

  • delay

  • delayWhen

  • dematerialize

  • materialize

  • observeOn

  • subscribeOn

  • timeInterval

  • timestamp

  • timeout

  • timeoutWith

  • toArray

Conditional and Boolean Operators

  • defaultIfEmpty

  • every

  • find

  • findIndex

  • isEmpty

Mathematical and Aggregate Operators

  • count

  • max

  • min

  • reduce

PreviousRxJSNextof

Last updated 3 years ago

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