What is the use case of map and flatMap? [closed]

+1 vote
What is the major use case for map and flatMap function. I know both are used for transformation where map provided one to one output and flat map provides one-to-many output.
closed as a duplicate of: map() and flatmap()
Aug 24, 2019 in Apache Spark by anonymous
 • 130 points
closed Aug 26, 2019 by Omkar • 163 views
Hello, there's a question on this topic. Please check it.
commented Aug 26, 2019 by Ritu

Related Questions In Apache Spark

0 votes
0 answers

what is the benefit of repartition(1) and coalesce(1). When we save data we use df.repartition(1).so how many partition it will create

what is the benefit of repartition(1) and ...READ MORE

Jul 26, 2019 in Apache Spark by kumar Ma
 • 472 views
0 votes
1 answer

What is Map and flatMap in Spark?

Hi, The map is a specific line or ...READ MORE

answered Jul 3, 2019 in Apache Spark by Gitika
 • 26,470 points • 547 views
0 votes
1 answer

What is the use of App class in Scala?

Hi, Scala provides a helper class, called App, that ...READ MORE

answered Jul 31, 2019 in Apache Spark by Gitika
 • 26,470 points • 577 views
+1 vote
3 answers

What is the difference between rdd and dataframes in Apache Spark ?

Comparison between Spark RDD vs DataFrame 1. Release ...READ MORE

answered Aug 27, 2018 in Apache Spark by shams
 • 3,580 points • 22,777 views
0 votes
1 answer

What is the difference between persist() and cache() in apache spark?

Hi, persist () allows the user to specify ...READ MORE

answered Jul 3, 2019 in Apache Spark by Gitika
 • 26,470 points • 1,126 views
0 votes
0 answers

How can we optimize and minimize the memory when work with scala use case?

When we calculate some use case with ...READ MORE

Jul 5, 2019 in Apache Spark by nilam
 • 76 views
0 votes
1 answer

How can we optimize and minimize the memory when work with scala use case?

Hi, There is a term in Scala that is ...READ MORE

answered Jul 5, 2019 in Apache Spark by Gitika
 • 26,470 points • 67 views
0 votes
1 answer

How to use yield keyword in scala and why it is used instead of println?

Hi, The yield keyword is used because the ...READ MORE

answered Jul 5, 2019 in Apache Spark by Gitika
 • 26,470 points • 113 views
0 votes
1 answer

What is the advantage of having immutability in design for Scala programming language?

Hi, Scala uses immutability by default in most ...READ MORE

answered Jul 24, 2019 in Apache Spark by Gitika
 • 26,470 points • 62 views
0 votes
1 answer

What is the work of Yield Keyword in Scala?

Hey, Used with a loop, yield produces a value for ...READ MORE

answered Jul 26, 2019 in Apache Spark by Gitika
 • 26,470 points • 81 views
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.