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/opt/alt/ruby18/share/ri/1.8/system/Array/index-i.yaml
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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Returns the index of the first object in <em>self</em> such that is <tt>==</tt> to <em>obj</em>. If a block is given instead of an argument, returns first object for which <em>block</em> is true. Returns <tt>nil</tt> if no match is found. - !ruby/struct:SM::Flow::VERB body: " a = [ "a", "b", "c" ]\n a.index("b") #=> 1\n a.index("z") #=> nil\n a.index{|x|x=="b"} #=> 1\n" - !ruby/struct:SM::Flow::P body: This is an alias of <tt>#find_index</tt>. full_name: Array#index is_singleton: false name: index params: | array.index(obj) -> int or nil array.index {|item| block} -> int or nil visibility: public
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