New Rubyist, trying to learn a simple contacts storage app

rubyonrails-talk
1

Hi Everyone,

Here is the code I currently have:

contacts = Hash.new

x = 0 y = 0

if x <= 5 puts “What contact would you like to add?” ui = gets.chomp contacts.store(y, ui) puts “Contact added is #{contacts}” x += 1 y += 1 puts “X is #{x}, Y is #{y}” # so I know if the values are being incremented else puts “You’ve reached the maximum # of contacts.” end

Also, how can I print a hash to the console without a key value?

Thank you

2

Is this to be part of a Rails application? You don't have a console in a rails app, everything is done via the browser.

Colin

3

Colin :

The Rails console can be accessed a few ways but in a rails app it’s a terminal command :

RAILS_ENV=development bundle exec rails c

This will load the code and dependencies and give you a console.

There are other ways to run code in situ, like the gem better_errors (with binding of caller) which will allow you to execute most commands in a browser like you would in a rails console session.

4

Hi,

The key / value pairs can be iterated like this:

str = ‘’ contacts.each do |key, value| str += key.to_s + ’ : ’ + value + ', ’ end

puts 'contacts output : ’ + str

There are more compact ways to do this but will not be as easy to see what is happening.

Kind Regards,

Doug

5

Thank you, Douglas. It’ll take me a bit to see what your code is doing but I’m determined to learn. I appreciate it!

6

puts yourHash.to_yaml