alxlion

1.12.14.0/23
1.12.32.0/23
1.14.0.0/15
1.44.96.0/24
1.116.0.0/15
1.178.32.0/19
1.247.4.0/24
1.255.30.0/24
2.56.8.0/23
2.56.16.0/22

alxlion

# We create a container class. We only store the product's name at instantiation
class Container

  attr :product_name

  def initialize(name)
    @product_name = name
  end

end

alxlion

class Shipment
  define_method :cancel do |reason|
    @cancelled = true
    puts reason
  end
end

alxlion

s = Shipment.new

if s.respond_to?(:tracking_code)
  s.send(:tracking_code, '123ABC') # or s.send('cancel_shipping', '123ABC')
else
  puts "Tracking code is not available."
end

alxlion

s = Shipment.new

if s.respond_to?(:cancel_shipping)
  s.cancel_shipping
else
  puts "Oh no ! Shipment cannot be cancel."
end

alxlion

class Shipment

  def prepare_for_delivery
    @message = 'Shipment is prepared for delivery'
  end

  def tracking_code(code)
    @tracking_code = code
  end

alxlion

function MyComponent() {
  const [counter, setCounter] = useState(0)
	
  return(<div />)
}

alxlion

class MyComponent extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
      counter: 0
    }
  }

  render() {
    return(<div/>)

alxlion

<div>
  <p v-for="student in students">{{ student }}</p>
</div>

alxlion

return (
  <div>
    {students.map(student => <p>{student}</p>)}
  </div>
)