Haumer

# string
"Hello world"

# integer
423

# float
3.14

# array

Haumer

Computer science is the study of the theory, experimentation, and engineering that form the basis for the design and use of computers. It is the scientific and practical approach to computation and its applications and the systematic study of the feasibility, structure, expression, and mechanization of the methodical procedures (or algorithms) that underlie the acquisition, representation, processing, storage, communication of, and access to, information. An alternate, more succinct definition of computer science is the study of automating algorithmic processes that scale. A computer scientist specializes in the theory of computation and the design of computational systems.[1]

Its fields can be divided into a variety of theoretical and practical disciplines. Some fields, such as computational complexity theory (which explores the fundamental properties of computational and intractable problems), are highly abstract, while fields such as computer graphics emphasize real-world visual applications. Other fields

Haumer

# Q6 - Complete the following code to compute the exact average of students
# grades (using each ).

grades = [19, 8, 11, 15, 13]
sum = 0

# 1) with .each
grades.each { |grade| sum += grade }
p sum.to_f / grades.size

Haumer

first personal file

Haumer

require 'json'
require 'open-uri'

# Lets call the github API
url = 'https://api.github.com/users/haumer/gists'

user_serialized = open(url).read
user = JSON.parse(user_serialized)

puts "#{user['name']} - #{user['bio']}"

Haumer

require_relative 'scraper'

puts "Fetching URLs"
urls = fetch_movie_urls

movies = urls.map do |url|
  puts "Scraping #{url}"
  scrape_movie(url)
end

Haumer

require_relative 'scraper'

puts "Fetching URLs"
urls = get_urls

movies = urls.map do |url|
  puts "Scraping #{url}"
  scrape_movie(url)
end

Haumer

require 'json'
require 'http'

class InstagramClient
  attr_reader :posts, :followers

  def initialize(instagram_handle)
    @instagram_handle = instagram_handle
    @url = "https://www.instagram.com/#{@instagram_handle}/?__a=1".freeze
    @data = JSON.parse HTTP.get(@url).to_s

Haumer

require "open-uri"
require "json"

class TflApi
  def initialize
    @url = "https://api.tfl.gov.uk/line/mode/tube,overground,dlr,tflrail/status".freeze
    retrieve_data
  end

  def retrieve_data

Haumer

# Customer list

SELECT first_name, last_name, email FROM customers
ORDER BY last_name



# Classical Playlist

SELECT tracks.name, tracks.composer FROM playlist_tracks