# Filtering

In a [push based approach](http://reactivex.io/rxjs/manual/overview.html#pull-versus-push), picking and choosing how and when to accept items is important. These operators provide techniques for accepting values from an observable source and dealing with [backpressure](https://github.com/Reactive-Extensions/RxJS/blob/master/doc/gettingstarted/backpressure.md).

## Contents

* [audit](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/audit)
* [auditTime](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/audittime)
* [debounce](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/debounce)
* [debounceTime](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/debouncetime) :star:
* [distinct](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/distinct)
* [distinctUntilChanged](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/distinctuntilchanged) :star:
* [distinctUntilKeyChanged](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/distinctuntilkeychanged)
* [filter](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/filter) :star:
* [find](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/find)
* [first](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/first)
* [ignoreElements](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/ignoreelements)
* [last](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/last)
* [sample](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/sample)
* [single](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/single)
* [skip](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/skip)
* [skipUntil](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/skipuntil)
* [skipWhile](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/skipwhile)
* [take](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/take) :star:
* [takeLast](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/takelast)
* [takeUntil](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/takeuntil) :star:
* [takeWhile](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/takewhile)
* [throttle](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/throttle)
* [throttleTime](https://junwoo45.gitbook.io/learn-rxjs-korean/learn-rxjs/recipes-1/filtering/throttletime)

:star: - *commonly used*