implicits

相关标签：javascript jquery android 多少钱 iPhone

Scala: How to get context bound List[T] conversion working here?

This is my first question here so hope I provide enough detail. Feel free to ask for clarification. Taking the following into consideration, which works:[详细]

2023-04-02 09:17 分类：问答
Why does DummyImplicit not disambiguate [String](a: A) from (a: String)

Given the following piece of code: final case class Attr[A](name: String)(implicit conv: String To A) {[详细]

2023-03-29 17:56 分类：问答
What to do with operations for a specific kind of collection?

In several different places in my application, I need to take a Seq[SalesRow] and return a Map[String,SalesRow], where the string is the name of a country.[详细]

2023-03-02 13:09 分类：问答
Question about type classes in Scala

Let there are classes Fruit, Orange, and Apple. abstract class Fruit class Orange extends Fruit class Apple extends Fruit[详细]

2023-02-25 13:20 分类：问答
Where does Scala look for implicits?

An implicit question to newcomers to Scala seems to be: where does the compiler look for implicits? I mean implicit because the question never seems to get fully formed, as if there weren\'t words for[详细]

2023-02-22 21:27 分类：问答
How can I chain implicits in Scala?

The pimp-my-library pattern allows me to seemingly add a method to a class by making available an implicit conversion from that class t开发者_如何学Goo one that implements the method.[详细]

2023-02-17 12:23 分类：问答
How to implement intermediate types for implicit methods?

Assume I want to offer method foo on existing type A outside of my control. As far as I know, the canonical way to do this in Scala is implementing an implicit conversion from A to some type that impl[详细]

2023-02-15 02:23 分类：问答
What is a diverging implicit expansion error?

While trying to find a solution to another question ([1]) I came across a diverging implicit expansion error. I\'m looking for an explanation about what this means[详细]

2023-02-08 11:46 分类：问答
What are Scala context and view bounds?

In a simple way, what are context and view bounds and what is the difference between them? Some eas开发者_开发技巧y-to-follow examples would be great too!I thought this was asked already, but, if so[详细]

2023-01-30 19:28 分类：问答
Other programming languages that support implicits "a la Scala"

Scala implicits are very powerfull. I\'m curious if they are a new/unique feature of Scala, or the concept already existed in other programming languages.[详细]

2023-01-03 18:30 分类：问答