Passing hash as arguments

ruby-talk
1

Is this the best way (though contrived) to use a hash as an argument in
ruby?

def state_name_age(feeling, info{})
  "#{:name} is #{feeling} #{:age} #{:units} old"
end

my_info = {}
my_info = {:name => "Kate", :units => "years", :age => 24}

irb(main):018:0> state_name_age('happily', my_info)
=> "Kate is happily 24 years old"

then...

irb(main):068:0> state_name_age 'happily'
=> " is happily old!"

This seems to be the way Rails has things set up to pass optional
arguments... Is that correct?

···

--
Posted via http://www.ruby-forum.com/.

2

def state_name_age(feeling, info{})
"#{:name} is #{feeling} #{:age} #{:units} old"
end

Try:

def state_name_age(feeling, info={})
   "#{info[:name]} is #{info[feeling]} #{info[:age]} #{info[:units]}
old"
end

irb(main):018:0> state_name_age('happily', :name => "Kate", :units =>
"years", :age => 24)

3

Tom Link wrote in post #773986:

def state_name_age(feeling, info{})
"#{:name} is #{feeling} #{:age} #{:units} old"
end

Try:

def state_name_age(feeling, info={})
   "#{info[:name]} is #{info[feeling]} #{info[:age]} #{info[:units]}
old"
end

irb(main):018:0> state_name_age('happily', :name => "Kate", :units =>
"years", :age => 24)

Is there anyway to pass the hash without having to "expand" it as you
did. Similar to:

## Make the hash
options = {:option1 => "hello", :option2 => "cats"}
## Call the function
my_function(options)

Would that work?

···

--
Posted via http://www.ruby-forum.com/\.

4

Try It And See.

···

On Nov 19, 2013, at 8:36 PM, Philip D. <lists@ruby-forum.com> wrote:

Tom Link wrote in post #773986:

def state_name_age(feeling, info{})
  "#{:name} is #{feeling} #{:age} #{:units} old"
end

Try:

def state_name_age(feeling, info={})
  "#{info[:name]} is #{info[feeling]} #{info[:age]} #{info[:units]}
old"
end

irb(main):018:0> state_name_age('happily', :name => "Kate", :units =>
"years", :age => 24)

Is there anyway to pass the hash without having to "expand" it as you
did. Similar to:

## Make the hash
options = {:option1 => "hello", :option2 => "cats"}
## Call the function
my_function(options)

Would that work?

—