module Kernel

def JSON(object, *args)

generate and parse for their documentation.
The _opts_ argument is passed through to generate/parse respectively. See

structure object and return it.
a Ruby data structure. Otherwise, generate a JSON text from the Ruby data
If _object_ is string-like, parse the string and return the parsed result as 
def JSON(object, *args)
  if object.respond_to? :to_str
    JSON.parse(object.to_str, args.first)
  else
    JSON.generate(object, args.first)
  end
end

def j(*objs)

one line.
Outputs _objs_ to STDOUT as JSON strings in the shortest form, that is in 
def j(*objs)
  objs.each do |obj|
    puts JSON::generate(obj, :allow_nan => true, :max_nesting => false)
  end
  nil
end

def jj(*objs)

indentation and over many lines.
Outputs _objs_ to STDOUT as JSON strings in a pretty format, with 
def jj(*objs)
  objs.each do |obj|
    puts JSON::pretty_generate(obj, :allow_nan => true, :max_nesting => false)
  end
  nil
end