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| Dir : /proc/self/root/opt/alt/ruby18/share/ri/1.8/system/Array/ |
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| Dir : //proc/self/root/opt/alt/ruby18/share/ri/1.8/system/Array/find_index-i.yaml |
--- !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#find_index
is_singleton: false
name: find_index
params: |
array.index(obj) -> int or nil
array.index {|item| block} -> int or nil
visibility: public