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View File Name :
find_index-i.ri
U:RDoc::AnyMethod[iI"find_index:ETI"Array#find_index;TF: publico:RDoc::Markup::Document: @parts[o: RDoc::Markup::Paragraph; [I".Returns the index of a specified element.;To: RDoc::Markup::BlankLine o; ; [I"3When argument +object+ is given but no block, ;TI"6returns the index of the first element +element+ ;TI"*for which <tt>object == element</tt>:;To:RDoc::Markup::Verbatim; [I"!a = [:foo, 'bar', 2, 'bar'] ;TI"a.index('bar') # => 1 ;T: @format0o; ; [I",Returns +nil+ if no such element found.;T@o; ; [I"8When both argument +object+ and a block are given, ;TI"3calls the block with each successive element; ;TI"Wreturns the index of the first element for which the block returns a truthy value:;To; ; [I"!a = [:foo, 'bar', 2, 'bar'] ;TI"2a.index {|element| element == 'bar' } # => 1 ;T; 0o; ; [I"=Returns +nil+ if the block never returns a truthy value.;T@o; ; [I"MWhen neither an argument nor a block is given, returns a new Enumerator:;To; ; [ I"a = [:foo, 'bar', 2] ;TI"e = a.index ;TI"2e # => #<Enumerator: [:foo, "bar", 2]:index> ;TI"1e.each {|element| element == 'bar' } # => 1 ;T; 0o; ; [I"2Array#find_index is an alias for Array#index.;T@o; ; [I"Related: #rindex.;T: @fileI" array.c;T:0@omit_headings_from_table_of_contents_below0I"xarray.index(object) -> integer or nil array.index {|element| ... } -> integer or nil array.index -> new_enumerator ;T0[[I" index;T@ I" (*args);T@6FI" Array;TcRDoc::NormalClass00