scala Archives - Page 2 of 7

Programming, scala

IT Nursery

difference between foldLeft and reduceLeft in Scala

I have learned the basic difference between foldLeft and reduceLeft foldLeft: initial value has to be passed reduceLeft: takes first element of the ...

May 28, 2022
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Programming, scala

IT Nursery

Good scalaz introduction [closed]

Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be ...

May 28, 2022
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Programming, scala

IT Nursery

What does `:_*` (colon underscore star) do in Scala?

I have the following piece of code from this question: def addChild(n: Node, newChild: Node) = n match { case Elem(prefix, label, attribs, ...

May 27, 2022
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Programming, scala

IT Nursery

Akka Kill vs. Stop vs. Poison Pill?

Newbie question of Akka – I’m reading over Akka Essentials, could someone please explain the difference between Akka Stop/Poison Pill vs. Kill ? ...

May 27, 2022
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How to get started with Akka Streams? [closed]

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so ...

May 26, 2022
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Scala 2.8 breakOut

In Scala 2.8, there is an object in scala.collection.package.scala: def breakOut[From, T, To](implicit b : CanBuildFrom[Nothing, T, To]) = new CanBuildFrom...

May 25, 2022
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How to clone a case class instance and change just one field in Scala?

Let’s say I have a case class that represents personas, people on different social networks. Instances of that class are fully immutable, and ...

May 25, 2022
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Get item in the list in Scala?

How in the world do you get just an element at index i from the List in scala? I tried get(i), and...

May 24, 2022
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What is the difference between “def” and “val” to define a function

What is the difference between: def even: Int => Boolean = _ % 2 == 0 and val even: Int => Boolean = ...

May 24, 2022
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Difference between case object and object

Is there any difference between case object and object in scala? 7 Answers 7

May 23, 2022
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