3. 2.0.0-p247> parents.each do |parent|
2.0.0-p247>
puts parent if parent.present?
2.0.0-p247> end
mom
dad
grandmom
> 5.times {
>
for (int = 5; i < 5; i++){
a = a + 1
> }
=> 5
a = a + 1
}
7. DSL
Configus.build :development do
env :production do
website_url 'http://example.com'
email do
pop do
address 'pop.example.com'
port
110
end
end
end
end
configus.email.pop.port # => 110
8. Расширения языка (gems)
2.0.0-p247 :020 > date = Date.current
=> Mon, 04 Nov 2013
2.0.0-p247 :021
=> Tue, 04 Nov
2.0.0-p247 :022
=> Tue, 04 Nov
> date.years_ago(10)
2003
> date + 1.year
2014
2.0.0-p247 :024 > date + 5.years - 1.day
=> Tue, 05 Nov 2018