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scala: sum of squares of every even-positioned digits starting from 2nd position
should help you out If you want every even-positioned value, one way of doing that is with grouped and head. To start at the second digit, take the tail of the list before grouping.
TAG :scala
Date : September 17 2020, 12:00 PM , By : Manoj
scala: any built-in function to divide a double by another double and return quotient and remainder as a tuple
Any of those help I can use the following function but is there a better option? , works since scala 2.8
TAG :scala
Date : September 17 2020, 07:00 AM , By : fernando minhocão
How do I extract each words from a text file in scala
it helps some times I'm pretty much new to Scala. I have a text file that has only one line with file words separated by a semi-colon(;). I want to extract each word, remove the white spaces, convert all to lowercase and call them based on the index
TAG :scala
Date : September 16 2020, 04:00 PM , By : jshaterian
Future onComplete works every other time
this one helps. Your main app thread is probably being terminated before your future completes. Try the following code.
TAG :scala
Date : September 16 2020, 05:00 AM , By : Craig Moore
In Scala, why it is impossible to infer TypeTag from type alias or dependent type?
Hope that helps Maybe someone will explain why a local type looks abstract. Maybe just a bug.
TAG :scala
Date : September 12 2020, 11:00 AM , By : Venkat
Join two spark Dataframe using the nested column and update one of the columns
To fix the issue you can do All you need is to explode the accountlinks array and then join the 2 dataframes like this:
TAG :scala
Date : September 12 2020, 09:00 AM , By : WongerRichie
How to create shared JDBC connection to use on executors?
I wish did fix the issue. Use Dataset.foreachPartition:
TAG :scala
Date : September 08 2020, 12:00 PM , By : airye
Need to deserialize the .toString representation of a complex Map[String, AnyRef] object
will help you It really depends on what you have in these Strings. Problem is that .toString on its own looses some information:
TAG :scala
Date : September 07 2020, 05:00 AM , By : D.Geerts
Covariant safe cast in Scala
I think the issue was by ths following , I'm trying to write a safe cast for a class with a covariant type parameter like: , What about a typeclass approach.
TAG :scala
Date : September 06 2020, 10:00 PM , By : Vitaliy Katorgin
Scala dynamic return type based on input type
I wish this help you Ok so I don't know what's bugging in this code: , Here's a solution using type classes and implicits.
TAG :scala
Date : September 06 2020, 12:00 AM , By : PetraR
Useful stack traces for futures/parallel code
it fixes the issue The ZIO stack traces are indeed amazing. We have added a very poor relative to this with a method called withDiagnostic. This records the file and line number where the method is called, and returns a new future that maps the any e
TAG :scala
Date : August 30 2020, 11:00 PM , By : Ferdi Özay
Achive dynamic string interpolation in Scala spark?
This might help you I have a string with the functions that need to go into .agg functions of my intended dataframe. MY data dataframe looks like , You can use different API to achieve what you want
TAG :scala
Date : August 30 2020, 04:00 AM , By : E.Qin
Testing Play framework controller that streams responses
should help you out As the Exception states NoMaterializer cannot materialize you may need to add a Materializer:
TAG :scala
Date : August 22 2020, 11:00 PM , By : Shale Martin
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