lucasuyezu

use std::collections::HashMap;

// Given a list of integers, use a vector and return the mean (the average value)
pub fn vec_mean(vec: &Vec<i32>) -> f64 {
    let sum = vec_sum(&vec);

    sum as f64 / vec.len() as f64
}

// Given a list of integers, use a vector and return the median (when sorted, the value in the middle position)

lucasuyezu

package main

import (
  "fmt"
  "runtime"
)

func main() {
  procs := runtime.GOMAXPROCS(0)

lucasuyezu

Apresentação

Lucas Uyezu

• IaaS dev @ Locaweb
• Java 2005 - 2008
• Android 2011-2012
• Ruby 2008 - Today
• @coralton
• github.com/lucasuyezu

lucasuyezu

puts "1) Fetching data"
http = EventMachine::HttpRequest.new("https://api.bitcoinaverage.com/ticker/global/all").get

http.errback { p '3) Not-done! Error!'; EM.stop }
http.callback do
    # 1 second later
    $redis.set(response_body["data"])
    puts "3) Storing fetched data"
    p http.response_header.status
    p http.response_header

lucasuyezu

puts "Fetching data"
respose_body = HTTParty.get "https://api.bitcoinaverage.com/ticker/global/all"
# 1 second later
puts "Storing fetched data"
$redis.set(response_body["data"])
puts "Done!"

lucasuyezu

# Setup
$redis = Redis.connect

# Conversion
currency, amount = parse_tweet("0.5 in #USD")
result = convert('USD', 0.5)
reply("#{amount} in #{currency} is #{result}")
$redis.sadd("conversions", "#{amount} in #{currency} at #{Time.now}")

# Checking later

lucasuyezu

# Setup
$conversions = 0

# Conversion
currency, amount = parse_tweet("0.5 in #USD")
result = convert('USD', 0.5)
reply("#{amount} in #{currency} is #{result}")
$conversions += 1

# Checking later

lucasuyezu

# Good
class V2::BackupsController < ApplicationController
  # All REST methods, as shown before
end

class V2::RestoresController < ApplicationController
  def index
    # List restores (via GET)
  end
  

lucasuyezu

# Bad
class BackupsController < ApplicationController
  def index
  end
  
  def show
  end
  
  # All other REST methods

lucasuyezu

-rw-------    1 lucasuyezu  staff           3 Sep  1 17:01 .CFUserTextEncoding
-rw-r--r--@   1 lucasuyezu  staff       21508 Sep  1 13:06 .DS_Store
drwx------    8 lucasuyezu  staff         272 Sep  1 20:21 .Trash
drwxr-xr-x   11 lucasuyezu  staff         374 May  6 15:55 .atom
-rw-------    1 lucasuyezu  staff         573 Jul 28 15:04 .bash_history
drwxr-xr-x    3 lucasuyezu  staff         102 Jun 13 15:26 .berkshelf
drwxr-xr-x    2 lucasuyezu  staff          68 Apr  4 15:26 .bin
drwxr-xr-x    4 lucasuyezu  staff         136 Jul 28 15:03 .boot2docker
drwxr-xr-x    3 lucasuyezu  staff         102 Apr  4 15:51 .bundle
-rw-r--r--    1 lucasuyezu  staff         422 Aug  4 19:05 .byebug_hist