Scalastyle is a style checker for Scala. It checks your Scala code against a number of configurable rules, and marks the code which violates these rules with warning or error markers in your source code.
Unmesha SreeVeni shows us how we can create a list of column names in Scala to pass into a Spark DataFrame’s select function: Now our example dataframe is ready.Create a List[String] with column names.scala> var selectExpr : List[String] = List("Type","Item","Price") selectExpr: List[String] = List(Type, Item, Price) Now our list of column names is also created.Lets […]
Shubham Dangare explains what case classes are in Scala: Case class is scale way to allow pattern matching on an object without requiring a large amount of boilerplate. All you need to do is add a single case keyword modifier to each class that you want to pattern matching using such modifier makes scala compiler […]