mayra-cabrera

class Project < ActiveRecord::Base
  belongs_to :portfolio
  has_one :project_manager
  has_many :milestones
  has_many :deliverables, through: milestones
  validates :name, :description, presence: true
  validates :non_disclosure_agreement, acceptance: true
  validates :short_name, uniqueness: true
end

mayra-cabrera

Ruby

$ irb
$ irb(main):001:0> exit
$ irb
$ irb(main):001:0> quit

mayra-cabrera

class NumberStrategy
  def run
    make_a_numeric_operation
  end
end

class StringStrategy
  def run
    check_grammar
  end

mayra-cabrera

Ejemplos

• Variables
• Structs
• Structs & composition
• Structs & functions
• Arrays & Slices
• Slices
• Defer
• Panic & Recover

mayra-cabrera

package main

import "fmt"

func main() {
	ch_unbuffered := make(chan string)
	ch_buffer := make(chan string, 2)
	.......
	.......
}

mayra-cabrera

func log(msg string){
... some logging code here
}
// Elsewhere in our code after we've discovered an error.
go log("something happened!!")

mayra-cabrera

package main

import (
	"fmt"
)

func main() {
	orgSlice := make([]string, 5, 8)
	orgSlice[0] = "Apple"
	orgSlice[1] = "Orange"

mayra-cabrera

package main

import (
	"fmt"
	)

type IPAddr [4]byte

func (ip IPAddr) String() string {
	return fmt.Sprintf("%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3])

mayra-cabrera

package main

import "fmt"

// fibonacci is a function that returns
// a function that returns an int.
func fibonacci() func() int {
	first, second := 0, 1

	return func() int{

mayra-cabrera

package main

import (
	"golang.org/x/tour/wc"
	"strings"
)

func WordCount(s string) map[string]int {
	array := strings.Fields(s)
	count := make(map[string]int)