flatmap vs concatmap

Deepika Sahu answered on December 29, 2022 Popularity 6/10 Helpfulness 3/10

answer flatmap vs concatmap

related flatmap vs concatmap

flatmap vs concatmap

Comment

Flat map uses merge operator while concatMap uses concat operator.

As you see the concatMap output sequence is ordered - all of the items emitted by the first Observable being emitted before any of the items emitted by the second Observable,
while flatMap output sequence is merged - the items emitted by the merged Observable may appear in any order, regardless of which source Observable they came from.

Popularity 6/10 Helpfulness 3/10 Language whatever

Source: Grepper

Tags: concatmap flatmap whatever

Link to this answer
Share Copy Link

Contributed on Dec 29 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Closely Related Answers

flatmap vs concatmap

Comment

@Test
public void flatMapVsConcatMap() throws Exception {
    System.out.println("******** Using flatMap() *********");
    Observable.range(1, 15)
            .flatMap(item -> Observable.just(item).delay(1, TimeUnit.MILLISECONDS))
            .subscribe(x -> System.out.print(x + " "));

    Thread.sleep(100);

    System.out.println("\n******** Using concatMap() *********");
    Observable.range(1, 15)
            .concatMap(item -> Observable.just(item).delay(1, TimeUnit.MILLISECONDS))
            .subscribe(x -> System.out.print(x + " "));

    Thread.sleep(100);
}

Popularity 6/10 Helpfulness 1/10 Language java

Source: stackoverflow.com

Tags: concatmap java flatmap ja

Link to this answer
Share Copy Link

Contributed on Dec 29 2022

Deepika Sahu

0 Answers Avg Quality 2/10

flatmap vs concatmap

Contents

More Related Answers

flatmap vs concatmap

Closely Related Answers

flatmap vs concatmap

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.