The major use-case for both of them is to provide ad-hoc polymorphism(i.e) on classes that you can't modify but expect inheritance kind of polymorphism. In case of implicits you could use both an implicit def or an implicit class (which is your wrapper class but hidden from the client...
Points of difference between Case Class and Class in Scala Both have different syntax for defining. The case class is defined in a single statement with parameters (syntax for defining case class) whereas the normal class is defined by defining method and fields (syntax for defining class). W...
The result is always a Scala identifier. This works even if the name contained in the back ticks would be a Scala reserved word. A typical use case is accessing the static yield method in Java's Thread class. You cannot write Thread.yield() because yield is a reserved ...
Scala example for 'variable with lazy val declaration'object MyClass { def main(args: Array[String]): Unit = { lazy val newBlock1 = { println( "\nThis will be printed only in case of first initialization of block1 ." ) "Hello from block1" } lazy val newBlock2 = { println( "\...
scalafunctional-programmingtraitsself-type Dependency Injection, such as in theCake Pattern. I once read agreat articlecovering many different forms of dependency injection in Scala, including the Cake Pattern, but I can't find it right now (edit: thanks to Mushtaq, it is now linked). If you...
There’s nothing special to adding library JAR files to the Scala REPL’s classpath. It’s exactly what you would do e.g. for any plain old Java library too. The important thing to notice here though is that because of the possibility of incompatibilities between major Scala versions, yo...
The problem with BitSet is not an isolated case. Here are two more interactions with the interpreter that both map a function over a map:scala> Map("a" -> 1, "b" -> 2) map { case (x, y) => (y, x) } res3: scala.collection.immutable.Map[Int,java.lang.String] = Map(1 ...
“An effect is a description of an action (or actions) that will be taken when evaluation happens.” deffoo(str:String):IO[String]=??? “In the above snippet,printerandprintAndReadare both effects: they describe an action — or in the case ofprintAndRead, actions plural — which will ...
Platform’s Connor Chappell stressed that any activation “Needs to be built against the customer expectation and experience.” The panel ended with Eva Adelsgruber encouraging retailers and brands to try out in-store retail media to build learnings and case studies to further capabilities and ...
This section with introduce the simplest use case where CSV files are stored in an Azure Storage Container. We will be using our S&P 500 stock data in this example. The source data files are in a CSV format and the data processing is called structured streaming....