Ammonite REPL Demo

gistfile1.scala

[info] Running ammonite.repl.Repl
@ Range(0, 5).ma
max     map     maxBy
@ while(true) ()

Interrupted!
@ val x = 1
x: Int = 1
@ val y = 2
y: Int = 2
@ x * y
res3: Int = 2
@ x + y
res4: Int = 3
@ x = " X "
Compilation Failed
Main.scala:9: reassignment to val
        val res5 = x = " X "
                     ^
@ val x = " X "
x: java.lang.String = " X "
@ x * y
res6: String = " X  X "
@ x + y
res7: java.lang.String = " X 2"
@ import ammonite.shell._
import ammonite.shell._
@ history
res9: scala.Seq[String] = Vector(
  "while(true) ()",
  "val x = 1",
  "val y = 2",
  "x * y",
  "x + y",
  "x = \" X \"",
  "val x = \" X \"",
  "x * y",
  "x + y",
  "import ammonite.shell._"
)
@ history |? grep! "val"
res10: Seq[String] = Vector("val x = 1", "val y = 2", "val x = \" X \"")
@ x
res11: java.lang.String = " X "
@ y
res12: Int = 2
@ history.slice(1, 3) |> load.lines
x: Int = 1
y: Int = 2
res13: Unit = ()
@ x
res16: Int = 1
@ y
res17: Int = 2
@ Seq(1, 2, 3).map(x => x.
getClass            ##                  asInstanceOf        isInstanceOf        toString
hashCode            equals              !=                  ==                  %
/                   *                   -                   +                   ^
&                   |                   >=                  >                   <=
<                   >>                  >>>                 <<                  unary_-
unary_+             unary_~             toDouble            toFloat             toLong
toInt               toChar              toShort             toByte              compareTo
doubleValue         floatValue          longValue           intValue            shortValue
byteValue           synchronized        ne                  eq                  wait
notifyAll           notify              toDegrees           toRadians           floor
ceil                round               signum              min                 max
abs                 isNegInfinity       isPosInfinity       isInfinity          isNaN
isValidInt          isValidChar         isValidShort        isValidByte         isWhole
self                to                  until               ResultWithoutStep   underlying
compare             isInfinite          toOctalString       toHexString         toBinaryString
isValidLong         formatted           ensuring            →                   ->
|>
@ Seq(1, 2, 3).map(x => x.
@