http://allaboutscala.com/tutorials/chapter-8-beginner-tutorial-using-scala-collection-functions/scala-foldright-example/ I’ll be glad to write more about this if anyone is interested, but for now, here are links to the Scala Either, Left, and Rightclasses: 1. Either 2. Left 3. Right While I’m in the neighborhood, here are links to the Option and Some classes, and the Noneobject: 1. Option 2. Some 3. None The Scala Try/Success/Failure classes … See more A Scala idiom (best practice) is to use the Option/Some/None pattern instead of using exceptions along with try/catch/finally (especially using … See more Either works just like Option, with a difference being that with Either you can return a String that describes the problem that occurred. Actually, what you do is wrap … See more In that example, the method divideXByY returns an Either, specifically this Either: In this example, the thing on the left is a String, and the thing on the right is an … See more
A practical guide to error handling in Scala Cats and Cats Effect
WebApr 24, 2024 · It can be left removal, right removal, or removal of all spaces from the string. To remove blank spaces from a string, Scala provides a trim () method. The trim () will … WebJul 1, 2024 · As we know Either is right bias so list.map(x => x.map(.toUpperCase)), x will only have Right Values which will be converted to uppercase then as we have return type as List[Either[Int, String]] for list.map(.map(_.toUpperCase)). y will have left and right values. All the left values will be multiplied by 20. toRight y.toRight(x) checks if ... enter the imaginarium louisville
What is Scala Operator – 6 Major Types of Operators in Scala
WebNov 22, 2024 · The order for traversing the elements in the collection is from left to right and hence the name reduceLeft. Unlike the foldLeft method, reduceLeft does not allow you to also specify an initial value. As per the Scala documentation, the definition of the reduceLeft method is as follows: def reduceLeft[B >: A](op: (B, A) ⇒ B): B WebThis example Scala source code file (Either.scala) is included in my "Source Code Warehouse " project. The intent of this project is to help you more easily find Scala source … WebJul 26, 2024 · Scala also has three shift methods on integer data types: shift-left (<<) shift-right (>>) unsigned-shift-right (>>>) All shift operators shift the integer value of the left operand by the amount specified by the value of the right operand. Shift-left shifts bits to the left filling to the right with zeros: assert(2 << 2 == 8) dr hannah theaker