rodloboz

# Ranges

range_1 = (1..10) # includes the last
p range_1

range_2 = (1...10) # does not include the last
p range_2.to_a

# Arrays
movies_stars = [

rodloboz

# What is an acronym:
# WTF => what the f*ck
# CIA => central intelligence agency
# FBI => federal bureau of investigation

# Pseudocode:
# 1) we start with a String
# 2) split the sentence into words => Array
    # delete ["of", "the", "a"]
# 3) get the first letter of each word #each/map

rodloboz

# Data Types / Built-in Objects
"Hello" # String
'Hello' # String

4 # Integer
4.3 # Float

false # Boolean

p [3, "Hello", 3.4, true] # Array

rodloboz

require_relative 'person'

# ARRAY CRUD

# CREATE
# index.       0.      1.    ...
musicians = ["paul", "ringo"]
p musicians

# READ

rodloboz

class Student
  attr_reader :first_name, :last_name, :nationality, :gender
  #.             first_name, last_name ...
  def initialize(params = {})
    @first_name = params[:first_name]
    @last_name = params[:last_name]
    @nationality = params[:nationality]
    @gender = params[:gender]
  end

rodloboz

#.    0.    1
students = [
  ["john", 28],
  ["mary", 22],
  ["peter", 18]
]

# TODO: transform student into an array of hashes

students_hash = students.map do |student|

rodloboz

def encrypt(sentence, permutation_level = -3)
  return "" if sentence.empty?
  alphabet = ("A".."Z").to_a
  # 1. Split string into letters
  letters = sentence.upcase.split("")
  # 2. Go through each letter
  result = ""
  # letters.each do |letter|
  #   # 3. Find index in list of letters
  #   letter_index = alphabet.index(letter)

rodloboz

# YIELD


def bigcount
  (0..100000000).sort
end


def timer(callback)
  start_time = Time.now

rodloboz

def acronymize(string)
  # TODO: write a method that returns
  # the acronym for the given string
  # 1. Split the sentence into words
  # 2. Grab the first letter of each word
  # 3. Capitalize it
  # 4. Join the first letters together
  # 5. return the result

     # gsub: string to replace , replace with

rodloboz

# add remote: true to form
<%= simple_form_for @model, remote: true do |f| %>
  # ...
  <%= f.button :submit %>
<% end %>


# controller receives ajax request
def create
  # do something