Who is Gant?

 

Published Author

Out of work Cover Model

15+ Years Web Dev

Teaches / Speaks / Volunteers

Likes Tacos

 

I totally paid for this image.

WHY?

eleGant Ruby

Good

Cheap

Fast

eleGant Language

Ruby

    def paidMore amount
      proc { |e| e.salary > amount }
    end

C#

    
    public Predicate<Employee>
    PaidMore(int amount) {
      return delegate(Employee e) {
        return e.Salary > amount;
      }
    }

snake_case vs camelCase

Bonita Sharif and Jonathan Maletic from the Department of Computer Science Kent State University 

 

 

TCP_IP_connection vs tcpIpConnection etc.

eleGant Ruby

Roadmap

Basics

Linting

Concepts

Basics

Making Code Beautiful

Readability

Readability

it's important!!!

Names


    def do_needed_actions_to_item e
      e.write
      e.save
    end

??????????????????????????

Keep Methods Small

No Negativity

You're the narrator.  It's your job to guide clearly.

Stay Positive

Stay Positive

Modus Ponens

  • If A then B  
  • A
  • therefore B

If I get off of work early then I will go with you.

I got off of work early.

Therefore I will go with you.

Stay Positive

Modus Tollens

  • If A then B
  • Not B
  • therefore not A

 

 

If a stranger shows, the dog will bark.

The dog did not bark

Therefore a stranger did not show.

 

The Hound of the Baskervilles 

Stay Positive

Stay Positive

    if !user.is_full?
      tacos.deploy
    end
    unless @breakfast == nil
      Takeout.deliver(@breakfast)
    end
    unless user.is_full?
      tacos.deploy
    end
    if @breakfast
      Takeout.deliver(@breakfast)
    end

  Takeout.deliver(@breakfast) if @breakfast

Linting

Keeping Code Beautiful

Linting

with Rubocop

et al.

Linting

should be friendly

 

REMEMBER - It's about people

Git-Hooks

linting on commit

 

Moving hooks to the repo: 

https://github.com/icefox/git-hooks

Concepts

Beauty in Abstraction

Ruby Fan-boy Checklist

  • OOP
  • Dynamic
  • Interpreted
  • Multi-platform
  • Garbage Collection
  • Open Source
  • Intuitive / Expressive
  • Community
  • Maturity

Higher-order Functions

Others are first-order functions

NOT TO BE CONFUSED WITH first-class functions

Functional Programming

map, collect, select, reject, find, any?, all?, sort

Blocs Procs and Lambdas

 

 

The Need


    Array.new(5)
    => [nil, nil, nil, nil, nil]

    Array.new(5, 100)
    => [100, 100, 100, 100, 100]
    
    Array.new(5, rand(100))
    => [65, 65, 65, 65, 65]
    
    Array.new(5) { rand(100) }
    => [55, 69, 5, 68, 54]

Let's Code

Examples of Closures

Everyone Confused?

GOOD!

https://github.com/gantman/eleGant

THE END

*Applause*

eleGant Ruby

By Gant Laborde

eleGant Ruby

A short jaunt through the world of Ruby and it's beauty.

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