x == 0
     el === document.body
   true != false
   true !== false
      n >= 0
      i <= Integer.MAX_INT
   A.id <> NULL
   true <=> false


      x := -1
        ++i
       1..10
       1...9
   mask >> 4
   cout << "Hola";
        !!object

        /* */
        // comment
     <hr/>
       (-> s vec)
       (->> xs (map inc))
   ((w) => w.Length)
[X || X <- [1,2,3]]
        <<-

        ::keyword
        #(+ 1 %)
        #_form

       (>>=) :: m a -> (a -> m b) -> m b
       (=<<) :: Monad m => (a -> m b) -> m a -> m b


(>>=) :: (Num a) => a -> a -> a
a /=b ++ a <- c << [1..2] -<<
a == w <- rng -< ()



# Ruby
=~
!~
#{abc}
(. abc)
(.- abc)
<!!
>!!
<!
>!
~@ macro
#'var
#"regexp"
*in*
*out*