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Hyukjin Kwon commented on SPARK-11687: -------------------------------------- I think some might disagree with this. I would like to work on this but love to hear what others think. > Mixed usage of fold and foldLeft, reduce and reduceLeft and reduceOption and > reduceLeftOption > --------------------------------------------------------------------------------------------- > > Key: SPARK-11687 > URL: https://issues.apache.org/jira/browse/SPARK-11687 > Project: Spark > Issue Type: Improvement > Reporter: Hyukjin Kwon > Priority: Trivial > > As can be seen here > https://github.com/scala/scala/blob/2.12.x/src/library/scala/collection/TraversableOnce.scala, > fold, reduce and reduceOption came out from scala 2.9.x. In addition, all > the implementations of {{fold}}, {{reduce}} and {{reduceOption}} call > actually {{foldLeft}}, {{reduceLeft}} and {{reduceLeftOption}} directly > without any additional codes. > For developers who is not really used to scala, the mixed usage of them might > leave a question, for example, if it works as reduceRight or reduceLeft (as > all know, the direction can change the results). Even some usages can be > found where they work identically the same things. > This is just a little nit but I think it would be better to use only > {{xxxLeft}} for readability. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org