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Array
U:RDoc::AnyMethod[iI" uniq!:ETI"Array#uniq!;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph; [I"YRemoves duplicate elements from +self+, the first occurrence always being retained; ;TI"=returns +self+ if any elements removed, +nil+ otherwise.;To:RDoc::Markup::BlankLine o; ; [I"UWith no block given, identifies and removes elements using method <tt>eql?</tt> ;TI"to compare elements:;T@o:RDoc::Markup::Verbatim; [I"a = [0, 0, 1, 1, 2, 2] ;TI"a.uniq! # => [0, 1, 2] ;TI"a.uniq! # => nil ;T:@format0o; ; [ I";With a block given, calls the block for each element; ;TI"Jidentifies and omits "duplicate" elements using method <tt>eql?</tt> ;TI",to compare <i>block return values</i>; ;TI"Bthat is, an element is a duplicate if its block return value ;TI"/is the same as that of a previous element:;T@o;; [I".a = ['a', 'aa', 'aaa', 'b', 'bb', 'bbb'] ;TI"?a.uniq! {|element| element.size } # => ["a", "aa", "aaa"] ;TI"0a.uniq! {|element| element.size } # => nil ;T; 0o; ; [I"NRelated: see {Methods for Deleting}[rdoc-ref:Array@Methods+for+Deleting].;T: @fileI"array.c;T:0@omit_headings_from_table_of_contents_below0I"@uniq! -> self or nil uniq! {|element| ... } -> self or nil ;T0[ I"();T@(FI" Array;TcRDoc::NormalClass00
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