Ruby on Rails - UNISO

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Ruby on Rails is a web application framework written in Ruby. It is designed to make programming web applications easier by making assumptions about what every developer needs to get started. It emphasizes using less code by convention over configuration. Some key aspects include using the MVC pattern, active record for database access, and test-driven development. The Rails community is large with over 45,000 libraries available to help developers.

Technology

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str = "ruby"
puts str.class # String

int = 100
puts int.class # Fixnum

str = "ruby"
puts str.class # String

int = 100
puts int.class # Fixnum

puts nil.class # NilClass

# application.rb
# Pick the frameworks you want:

# require "active_record/railtie"
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "sprockets/railtie"
# require "rails/test_unit/railtie"

describe Order do
it "sums the prices of items" do
order = Order.new
order.add_entry(Item.new(
:price => Money.new(1.11, :USD)
))
order.add_entry(Item.new(
:price => Money.new(2.22, :USD),
:quantity => 2
))
order.total.should eq(Money.new(5.55, :USD))
end
end

"Describe an order."
"It sums the prices of items."

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I18nsoon

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Hi, I’m Aly Owens, I have a special pleasure to stand here as over a decade ago I graduated from CityU as an international student with an MBA program. I enjoyed the diversity of the school, ability to work and study, the network that came with being here, and of course the price tag for students here has always been more affordable than most around. Since then I have worked for major corporations like T-Mobile and Microsoft and many more, and I have founded a startup. I've also been teaching product management to ensure my students save time and money to get to the same level as me faster avoiding popular mistakes. Today as I’ve transitioned to teaching and focusing on the startup, I hear everybody being concerned about Ai stealing their jobs… We’ll talk about it shortly. But before that, I want to take you back to 1997. One of my favorite movies is “Fifth Element”. It wowed me with futuristic predictions when I was a kid and I’m impressed by the number of these predictions that have already come true. Self-driving cars, video calls and smart TV, personalized ads and identity scanning. Sci-fi movies and books gave us many ideas and some are being implemented as we speak. But we often get ahead of ourselves: Flying cars,Colonized planets, Human-like AI: not yet, Time travel, Mind-machine neural interfaces for everyone: Only in experimental stages (e.g. Neuralink). Cyberpunk dystopias: Some vibes (neon signs + inequality + surveillance), but not total dystopia (thankfully). On the bright side, we predict that the working hours should drop as Ai becomes our helper and there shouldn’t be a need to work 8 hours/day. Nobody knows for sure but we can require that from legislation. Instead of waiting to see what the government and billionaires come up with, I say we should design our own future. So, we as humans, when we don’t know something - fear takes over. The same thing happened during the industrial revolution. In the Industrial Era, machines didn’t steal jobs—they transformed them but people were scared about their jobs. The AI era is making similar changes except it feels like robots will take the center stage instead of a human. First off, even when it comes to the hottest space in the military - drones, Ai does a fraction of work. AI algorithms enable real-time decision-making, obstacle avoidance, and mission optimization making drones far more autonomous and capable than traditional remote-controlled aircraft. Key technologies include computer vision for object detection, GPS-enhanced navigation, and neural networks for learning and adaptation. But guess what? There are only 2 companies right now that utilize Ai in drones to make autonomous decisions - Skydio and DJI.

Cyber Defense Matrix Workshop - RSA ConferencePriyanka Aash