U:RDoc::AnyMethod[iI" index:ETI"Array#index;TF: publico:RDoc::Markup::Document: @parts[o:RDoc::Markup::Paragraph; [I"NReturns the _index_ of the first object in +ary+ such that the object is ;TI"== to +obj+.;To:RDoc::Markup::BlankLineo; ; [I"LIf a block is given instead of an argument, returns the _index_ of the ;TI"Kfirst object for which the block returns +true+. Returns +nil+ if no ;TI"match is found.;T@o; ; [I"See also Array#rindex.;T@o; ; [I"HAn Enumerator is returned if neither a block nor argument is given.;T@o:RDoc::Markup::Verbatim; [ I"a = [ "a", "b", "c" ] ;TI"%a.index("b") #=> 1 ;TI"'a.index("z") #=> nil ;TI"$a.index { |x| x == "b" } #=> 1;T: @format0: @fileI" array.c;T:0@omit_headings_from_table_of_contents_below0I"}ary.index(obj) -> int or nil ary.index { |item| block } -> int or nil ary.index -> Enumerator;T0[I" (*args);T@!FI" Array;TcRDoc::NormalClass00