Returns the element at index. A negative index counts from the end of self.
Returns nil if the index is out of
range. See also Array#.
a = [ "a", "b", "c", "d", "e" ]
a.at(0) #=> "a"
a.at(-1) #=> "e"
rb_ary_at(VALUE ary, VALUE pos)
return rb_ary_entry(ary, NUM2LONG(pos));
APIdock release: IRON STEVE (1.4)
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APIdock copyright Nodeta Oy 2008-2015
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