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

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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 in Apache Spark by anonymous
 • 120 points
closed Aug 26 by Omkar • 43 views
Hello, there's a question on this topic. Please check it.
commented Aug 26 by Ritu

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