有没有办法重写这个更优雅？我认为这是一个坏代码,应该被重构.
>> a = [2,4,10,1,13] => [2,13] >> index_of_minimal_value_in_array = a.index(a.min) => 3
解决方法
It would be interesting to read about other situations (finding all and only last minimal element).
ary = [1,2,1]
# find all matching elements' indexes
ary.each.with_index.find_all{ |a,i| a == ary.min }.map{ |a,b| b } # => [0,2]
ary.each.with_index.map{ |a,i| (a == ary.min) ? i : nil }.compact # => [0,2]
# find last matching element's index
ary.rindex(ary.min) # => 2