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Sorry for the simple question, but I'm new to programming and have been
banging my head over this.

I've got myself a hash with each value an array of strings. I want to
grep the strings and collect only the strings that match the regexp
into an array. How do I go about this?

my_result_array = []
my_hash.each_value do |my_array|
my_result_array += my_array.select { |item| item =~ /^[A-Za-z]+$/ }
end

The code above would go through and put all of the strings that only
consisted of letters into one array. Is something like this what you
were looking for?

p-hawk wrote:
> Sorry for the simple question, but I'm new to programming and have been
> banging my head over this.
>
> I've got myself a hash with each value an array of strings. I want to
> grep the strings and collect only the strings that match the regexp
> into an array. How do I go about this?

katherine wrote:
> my_result_array = []
> my_hash.each_value do |my_array|
> my_result_array += my_array.select { |item| item =~ /^[A-Za-z]+$/ }
> end
>
> The code above would go through and put all of the strings that only
> consisted of letters into one array. Is something like this what you
> were looking for?

Yes, this is exactly what I was looking for. Thank you for your help.

*/me goes off to conquer the world*

> I've got myself a hash with each value an array of strings. I
> want to grep the strings and collect only the strings that
> match the regexp into an array. How do I go about this?

my_array = my_hash.values.flatten.select{|s| s =~ /.../}

gegroet,
Erik V. - http://www.erikveen.dds.nl/