stdlib.jq - third_party/github.com/jqlang/jq - Git at Google

 def map(f) = [.[] | f];

 def first = .[0];
 # def last = .[count-1];
 def next = .[count];

 # ([])[] would be a decent definition of "empty"
 # except ([]) is defined as syntactic sugar for empty
 def empty = {}[];

 def sort = [group(.) | .[]];
	def map(f) = [.[] \| f];

	def first = .[0];
	# def last = .[count-1];
	def next = .[count];

	# ([])[] would be a decent definition of "empty"
	# except ([]) is defined as syntactic sugar for empty
	def empty = {}[];

	def sort = [group(.) \| .[]];