From: Leigh Daniels <lcdpublic@...>
Date: 2011-05-28T05:12:15+09:00
Subject: Re: Hash .each and different action for each key

def one(x)
  puts "1. #{x}"
end
def two(x)
  puts "2. #{x}"
end
def three(x)
  puts "3. #{x}"
end

my_hash_table = {"a"=>42, "b"=>999, "c"=>123}

my_hash_table.each_pair do |k, v|
  if k == "a"
    one(v)
  end
  if k == "b"
    two(v)
  end
  if k == "c"
    three(v)
  end
end

>Igor Nn wrote in post #1001604:
>> What I would like to do is loop through the hash and do a different
>> action based on each unique key.
>>
>> my_hash_table.each_pair do |k, v|
>>   # Call a method if a hash key == "a"
>>   # Call a different method if hash key == "b"
>>   # Call a third method if a hash key == "c"
>> end
>>
>> I have been trying to implement this with "if" and "case", but the loop
>> stops once the first argument is satisfied.
>
>Then show your code. "if" and "case" will be able to do this just fine.
>
>Make a small *standalone* test program, e.g. start it with
>
>my_hash_table = {"a"=>42, "b"=>999, "c"=>123}
>
>Then when you post it here, we will be able to run it too and duplicate 
>your problem.
>
>-- 
>Posted via http://www.ruby-forum.com/.
>