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irb(main):282:0> a  1..100).inject([]){|hash, x| hash[x-1]   unless x%3
 || x%5 || x%15 ; hash[x-1]  Fizz' if x%3 ; hash[x-1]  Buzz'
if x%5 ; hash[x-1]  FizzBuzz' if x%15 ; hash}

irb(main):283:0> a.each{|x| p x}

I like one line coding in ruby ^^

and sorry about my parameter name "hash" lazy to change >.<

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