Push element to existing array in ruby

Question

I have a problem that I don't know how to resolve:

I have this code that pretty much asks user for date. The problem that I have is that I can't make the array to take var limit as an element whenever user puts a new date. The array resets itself whenever the method 'new_date' ends.

Here is the code:

def new_date 
  puts "Date please: "
  date1 = $stdin.gets.chomp
  d, m, y = date1.split('-').map{|x| x.to_i}
  limit = day_of_week(d, m, y)
  puts days_of_the_week[limit]
  $various_dates = []
  $various_dates.push(limit)
end

Ok, I edit it. I tried '$various_dates' in several lines just for testing and none of them worked. They are gone now. — Cherenkov
– Cherenkov, Commented Oct 10, 2015 at 4:39

ronalchn · Accepted Answer · 2015-10-10 04:40:40Z

1

You should not reset your array of dates in:

$various_dates = []

Instead, do something like:

$various_dates ||= []

What this does, is it gets the global variable $various_dates, but if it hasn't been initialized (which means that it is nil), it will be set to an empty array.

answered Oct 10, 2015 at 4:40

ronalchn

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1 Comment

Cherenkov Over a year ago

This is it! Thanks so much! :)

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