scala some to string

Why do I get a Some instead of a String in Scala - You are unnecessarily calling toString() on Option[String] (which Play.current. configuration.getString() returns), try this: def config(s: String)

Scala convert Option[T] to String - toString) res0: String = 1 scala> None.fold("")(_. Within the map function, s will contain the raw string if the Option is Some(String) otherwise it

Scala best practice: How to use the Option/Some/None pattern - Scala best practice: How to use the Option/Some/None pattern. By Alvin Alexander. def toInt(s: String): Option[Int] = { try { Some(Integer.

class Some in scala - Class Some[A] represents existing values of type A . Implementations may override this method in order to prepend a string prefix to the result of the toString

Scala Options - For instance, the get method of Scala's Map produces Some(value) if a value object Demo { def main(args: Array[String]) { val capitals = Map("France"

[scala-user] Converting Option[String] to String - With some logic down the road I want a subset of that record so I do res.expand[ String]("myDesiredKey") and get back Option[String] or

Scala Tutorial: Using Options, Some, and None - An easy to understand tutorial on Scala Options including basic examples with explanations. val firstName: Options[String] = Some("Joe").

Scala Tutorial - Learn How To Use Option - Avoid Null - By making use of Option, Some and None, Scala encourages you to its value using the Some class and pass in your donut taste String of

Safely parsing Strings to numbers in Scala (Example) - A protip by mortimerpa about scala, parse, string, implicit, implicit In java, you would either return a null, or some default value, but null is evil

exercises-stdlib/Options.scala at master · scala-exercises/exercises - Contribute to scala-exercises/exercises-stdlib development by creating an account on val someValue: Option[String] = Some("I am wrapped in something" ).

scala option parameter

Scala Tutorial - In this Scala beginner tutorial, you will learn how to use Option in function parameters and learn how to assign default values to Option

Default Parameter Values - The parameter level has a default value so it is optional. On the last line, the argument "WARNING" overrides the default argument "INFO" . Where you might do

Scala Option, Some, None syntax examples - Today I’m sharing some examples of the Scala Option/Some/None syntax. These examples will show how to use an Option for the var fields in a Scala class. That example shows how to define Scala Option fields when they have no initial value.

Scala best practice: How to use the Option/Some/None pattern - Scala best practice: How to use the Option/Some/None pattern Using Option in method and constructor parameters; Using Option to initialize

Method call with option value or default parameter in Scala - It seems like you are using two concepts of value being optional in one place, i.e. optional parameter and Option . They don't like play well

Optional Parameters in Scala – Anil G Kurian - One of the many cool features Scala provides over Java is the ability to Such parameters become optional and the callers can invoke the

The Neophyte's Guide to Scala Part 5: The Option type - For this reason, the Option companion object provides a factory method that creates None if the given parameter is null , otherwise the

Scala Options - Scala Option[ T ] is a container for zero or one element of a given type. An Option[ T] can be either Some[T] or None object, which represents a missing value.

Optional parameters - With Scala 2.8 optional and named parameters are build in. def sortTable(data: List[List[String]], ordering: (String, String) => Boolean = (_

Scala Routing - 2.7.x - For parameters of type String , typing the parameter is optional. If you want Play to transform the incoming parameter into a specific Scala type, you can explicitly