U:RDoc::AnyMethod[iI"combination:ETI"Array#combination;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph;	[I"RWhen invoked with a block, yields all combinations of length +n+ of elements ;TI"6from the array and then returns the array itself.;To:RDoc::Markup::BlankLineo;
;	[I"IThe implementation makes no guarantees about the order in which the ;TI"combinations are yielded.;T@o;
;	[I"=If no block is given, an Enumerator is returned instead.;T@o;
;	[I"Examples:;T@o:RDoc::Markup::Verbatim;	[I"a = [1, 2, 3, 4]
;TI"2a.combination(1).to_a  #=> [[1],[2],[3],[4]]
;TI"Fa.combination(2).to_a  #=> [[1,2],[1,3],[1,4],[2,3],[2,4],[3,4]]
;TI"Ba.combination(3).to_a  #=> [[1,2,3],[1,2,4],[1,3,4],[2,3,4]]
;TI",a.combination(4).to_a  #=> [[1,2,3,4]]
;TI"Ca.combination(0).to_a  #=> [[]] # one combination of length 0
;TI"Ba.combination(5).to_a  #=> []   # no combinations of length 5;T:@format0:
@fileI"array.c;T:0@omit_headings_from_table_of_contents_below0I"bary.combination(n) {|c| block}      -> ary
ary.combination(n)                  -> Enumerator
;T0[I"	(p1);T@#FI"
Array;TcRDoc::NormalClass00