CODEWITHSUNDEEP
ruby-on-railsruby
Programer.new
Programer.new

Reputation: 15

Returning a specific string format from an array

I have an array of Persons (class contain name and lastname and id ) what I have to do is to return a string form this array but in a specific format an example will be more explicative

array=[PERS1,PERS2]

I need this as a return value : "The name of all persons : "+ PERS1.name + PERS1.LASTN + " , " + PERS2.name +PERS2.LASTN +","

I know this method

 array.each{ |per|

                #but this will not return  the format ,and with each I think I can only    print (I'm new in the ruby field
                }

all of this because I need it when overriding to_s , because I need to provide a string -> to_s

def to_s

    "THE name of all preson"[email protected]    #will not work as I want 
end

Thank you for ur time and effort and if you need any clarification please let me know

Upvotes: 0

Views: 174

Answers (2)

Yakov
Yakov

Reputation: 3191

each just iterates over a collection and returns the collection itself. You may want to use map and join the result.

array.map { |person| "#{person.name} #{person.lastn}" }.join(',')

Or if you modify your Person class it can be even simpler.

# I assume that the name of the class is Person and name and lastn are always present
class Person
  def full_name
    "#{person.name} #{person.lastname}"
  end
end

# Then you can call this method on `map`.
array.map(&:full_name).join(',')

Upvotes: 2

Hardik Upadhyay
Hardik Upadhyay

Reputation: 2659

Try this,

array.each do |per|
 "#{per.name} #{per.LASTN}"
end

For more info check Interpolation

Upvotes: -1

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