jack-v2.txt

integer literals

  1   -- integer
  -5  -- integer
  
rational literals

  1/4   -- rational
  3.141 -- rational (syntax sugar for 3141/1000)

tuple literal

  ( expression* )
  (1 2) -- two values
  (1)   -- single value is allowed
  ()    -- empty tuple is allowed too

code literal, does not eager eval contents, returns code block as value

  { code... }

code literal parameters

  { a b : a + b }

variable assignment

  set add { a + b }

set (a b) (a b)
pipeline operator for passing arguments

  (1 2) | add

call operator for passing arguments

easy iterators/loops

  loop 5 {
    @ | log
  }