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    Is it possible in Lift web framework to create forms (and links) that react via AJAX, but also work without ... code, that would be best. See Question&Answers more detail:os...
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    What is the corrent syntax for filtering on multiple columns in the Scala API? If I want to do something like this: ... "group" !== "-1") See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to create the case classes as explained in this article sealed abstract case class Exp() case class ... (x:Int) extends Exp ^ See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Slick fills up the console with a massive amount of log messages. I wanted, like the documentation suggested, ... - After phase insertCompiler: See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm doing some refactoring that made compiler temporally give errors in several files. I'd like to work ... that sbt functionality disclosure. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I find some confusing use of trait in some unittesting code, such as: trait MyTrait { val t1 = ... // ... other cases might also be helpful? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have the following list of tuples: val arr = List(('a',10),('b',2),('c',3)) How to find the tuple ... or ('a', 10) for max value. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    This doesn't work: trait Trait class Class extends Trait with Trait Compiler complains: <console>:8: error: ... or pattern somehow useful? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    As long as we have a PartialFunction[X,R] it's very easy to convert it to a function returning Option[R], ... there some better way I missed? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What is the Scala's way to write the following code: int i; switch(i) { case 1: a(); break; case ... code will return nothing. Thanks for help! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    The below code does streaming back to client, in, what I gather is a more idiomatic way than using Java's ... when passed through this proxy. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a cluster and I execute wholeTextFiles which should pull about a million text files who sum up to ... to observe the limit... See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Thanks a lot for any guidance! The SecureSocial plugin works fine when I run it from the browser, but I would ... apply(Action.scala:215) [info] See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to understand the reactive I/O concepts of Play 2.0 framework. In order to get a better ... this I would greatly appreciate it! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am studying variance in scala right now, and I think I have a good understanding of contravariance. For example given ... >: A is not true. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to rewrite some of my code written with RDDs to use DataFrames. It was working quite smoothly until ... possible? Thanks in advance. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a dataframe in spark where an entire partition from Hive has been loaded and i need to break the lineage ... has been in the dataframes. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    In my Spark application, I am trying to read multiple tables from RDBMS, doing some data processing, then write ... (I think same logic)? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I need to implement a generic method that takes a tuple and returns a Map Example : val tuple=((1,2),( ... this kind of iteration over the tuple See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I using hive through Spark. I have a Insert into partitioned table query in my spark code. The input data is in ... to do this Spark or Scala? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is there already or is it possible to have a Scala macro that gives me access to the text of the source? For ... "} // prints list.sum: 6 See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    scala> List(List(1), List(2), List(3), List(4)) res18: List[List[Int]] = List(List(1), List(2), ... one over the other? Are there any tradeoffs? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I try to repartition a DataFrame according to a column the the DataFrame has N (let say N=3) different values ... creates 200 partitions) ...) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am new to Scala and trying to wrap my head around continuations I'm trying to reproduce the yield return C# ... than a while loop? Thank you See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Based on: import shapeless._ case class Content(field: Int) lens[Content] >> 'field I am trying to ... boilerplate-free solutions? Thanks! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    It is possible to pull on demand from a number (say two for simplicity) of sources using streams (lazy lists). ... source does it want to pull. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want that Scaladoc generates a type hierarchy diagram for the following code snippet: trait A trait B extends ... I generate such diagrams? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I get a "java.lang.OutOfMemoryError: Java heap space" when running activator. I would like to set the ... any documentation on this anywhere. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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