How to save REPL session?

Question

Is it possible to save a REPL session in a file? Is there a minimum version of Scala requiered to do this? I remember having seen someone do it, but I can\'t fine it in :hel

Answer 1

Note that you have in addition of the native Scala REPL the shell-scripting project Ammonite, which does have a Save/Loadd Session feature:

Apart from plain saves and loads, which simply discard everything after the most recent save, you can also provide a name to these functions.
That lets you stop working on a branch, go do something else for a while, and be able to come back later to continue where you left off:

@ val (x, y) = (1, 2)
x: Int = 1
y: Int = 2

@ sess.save("xy initialized")

@ val z = x + y
z: Int = 3

@ sess.save("first z")

@ sess.load("xy initialized")

@ val z = x - y
z: Int = -1