Ammonite | ammonite project lives | Code Editor library

I'm playing around with the scala-forklift library and wanted to test an idea by modifying the code in the library and example project.

This is how the project is structured:

• /build.sbt -> Contains definition of scala-forklift-slick project (including its dependencies) in the form of:

I have following very simple module definition in build.src

Need a regular expression for a letter in any language. \pL or \p{L} work within Ammonite Repl 1.6.8 (Scala 2.13.0 Java 11.0.8)

I am reading Hands-on Scala Programming and I am stuck on recursive typeclass inference.

The section explains how to write a parser from multiple data types. It gives the example below

I wonder if I can "patch" a variable onto an instance of a scala class.

The particular application is to fit statistical models à la scikit-learn (python):

There are multiple binary incompatible scala 2 versions, however the document says the installation is either via IDE or SBT.

DOWNLOAD SCALA 2

Then, install Scala:...either by installing an IDE such as IntelliJ, or sbt, Scala's build tool.

Spark 3 needs Scala 2.12.

Spark 3.1.2 uses Scala 2.12. You will need to use a compatible Scala version (2.12.x).

Then how can we make sure the scala version is 2.12 if we install sbt?

Or the documentation is not accurate and it should be "to use specific version of scala, need to download specific scala version on your own"?

As per the answer by mario-galic, in ONE-CLICK INSTALL FOR SCALA it is said:

Installing Scala has always been a task more challenging than necessary, with the potential to drive away beginners. Should I install Scala itself? sbt? Some other build tools? What about a better REPL like Ammonite? Oh and before all that I need to install Java?

To solve this problem, the Scala Center contracted Alexandre Archambault in January 2020 to add a one-click install of Scala through coursier. For example, on Linux, all we now need is:
$ curl -Lo cs https://git.io/coursier-cli-linux && chmod +x cs && ./cs setup

Let's say I have a typeclass such as this one:

I have a firebase project that, since my last build, will not create new docs. It will save and amend docs, but not create new ones.

The function for creating new docs should create a new doc with a key based on a newly created uid like this:

I am trying to decode a String value class in which if the string is empty I need to get a None otherwise a Some. I have the following ammonite script example: