read-eval-print-loop

I've downloaded Algebird and I want to try out few things in the Scala interpreter using this library. How do I achieve this? Rüdiger Klaehn Of course, you can use scala -cp whatever and manually manage your dependencies. But that gets quite tedious, especially if you have multiple dependencies. A more flexible approach is to use sbt to manage your dependencies. Search for the library you want to use on search.maven.org . Algebird for example is available by simply searching for algebird . Then create a build.sbt referring to that library, enter the directory and enter sbt console . It will

When I type scala on the terminal to start the repl, it throws this error scala> [init] error: error while loading AnnotatedElement, class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar (java/lang/reflect/AnnotatedElement.class)' is broken (bad constant pool tag 15 at byte 2713) When I hit enter and type println("hello, world") , it again throws this error: error while loading CharSequence, class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar (java/lang/CharSequence.class)' is broken (bad constant pool tag 15 at byte 1501) I am using Ubuntu 14.04 and java -version gives java version "1.8.0

When I exit the interactive R shell, it displays an annoying prompt every time: > > Save workspace image? [y/n/c]: n I'm always answering "no" to it, because if I wished to save my work, I'd do that before trying to exit. How to get rid of the prompt? Note: see ?save.image Joshua Ulrich You can pass the --no-save command line argument when you start R, or you can override the q function: utils::assignInNamespace( "q", function(save = "no", status = 0, runLast = TRUE) { .Internal(quit(save, status, runLast)) }, "base" ) Put the above code in your .Rprofile so it will be run on startup for every

I have a script foo.js that contains some functions I want to play with in the REPL. Is there a way to have node execute my script and then jump into a REPL with all the declared globals, like I can with python -i foo.py or ghci foo.hs ? There is still nothing built-in to provide the exact functionality you describe. However, an alternative to using require it to use the .load command within the REPL, like such: .load foo.js It loads the file in line by line just as if you had typed it in the REPL. Unlike require this pollutes the REPL history with the commands you loaded. However, it has the