coffeescript.node

~$ coffee -i
coffee> process.mixin(require("sys"))
coffee> p
[Function]
coffee> p (x) -> x * x
[Function]
coffee> puts (x) -> x * x
function (x) {
  return x * x;
}
coffee> puts on or yes
true
coffee> node
{
 "createProcess": [Function],
 "exec": [Function],
 "inherits": [Function],
 "http": {
  "createServer": [Function],
  "createClient": [Function]
 },
 "tcp": {
  "createServer": [Function],
  "createConnection": [Function]
 },
 "dns": {
  "createConnection": [Function]
 }
}
coffee> new Error("Test")
{
 "message": "Test",
 "stack": [Getter/Setter],
 "name": "Error"
}