learn-co-curriculum / mod-1-discussion-questions-using-self-in-ruby

self Discussion Questions

Instructions

Take 30 minutes and answer the following questions together with your group. Take turns playing around with the code provided in Pry or IRB.

Question 1

class FunnyBots
  attr_accessor :name, :quotes

  @@bots = []

  def initialize(name, quotes)
    @name = name
    @quotes = quotes
    @@bots << self
  end

  def random_quote
    self.quotes.sample
  end

  def self.bots
    @@bots
  end
end

quotes = [
  'Q: How did the programmer die in the shower? A: He read the shampoo bottle instructions: Lather. Rinse. Repeat.',
  "A UI is like a joke. If you have to explain it, it's not good.",
  'Q: How many programmers does it take to change a light bulb? A: None – It’s a hardware problem.,
]
archer = FunnyBots.new('Archer', quotes)

• What is self in this line: @@bots << self ?
• What is self in this line: self.quotes.sample?
• What kind of method is self.bots and what is self?
• Will this work: archer.bots? Why / why not?

Question 2

class Bicycle
  attr_reader :tire

  def initialize(tire, gears, style)
    @tire = tire
    @gears = gears
    @style = style
  end

  def tire_size
    self.tire
  end

  def self.gears
    @gears
  end
end

mongoose = Bicycle.new(4, 10, 'BMX')

For what reasons will the following method calls fail?

• mongoose.tire_size = 5
• mongoose.gears
• Bicycle.bikes
• Bicycle.styles

Restructure the class to fix the issues.

mod-1-discussion-questions-using-self-in-ruby's Issues

Typo in Readme

Canvas Link

https://learning.flatironschool.com/courses/4543/discussion_topics/12664?module_item_id=335839

Concern

Some markdown is not rendering correctly on Canvas. It creates a typo in the Readme which makes some Ruby code unintelligible.

Additional Context

No response

Suggested Changes

A. What is self in this line @@Bots << self ?
Should read:
A. What is self in this line @@Bots << self ?

linter rules

linter rules