Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
let's go
Search
Andrews Medina
May 11, 2013
Programming
2
310
let's go
Uma introdução sobre a linguagem go no devcamp 2013
Andrews Medina
May 11, 2013
Tweet
Share
More Decks by Andrews Medina
See All by Andrews Medina
Organizando dados juŕidicos em grafos
andrewsmedina
0
99
Clean Code - princípios e práticas para um código sustentável
andrewsmedina
0
640
Pytfalls
andrewsmedina
1
200
tsuru para quem sabe tsuru
andrewsmedina
0
77
globo.com s2 python
andrewsmedina
5
390
tsuru and docker
andrewsmedina
6
3.6k
pypy - o interpretador mais rapido do velho oeste
andrewsmedina
0
400
fazendo deploys de forma simples e divertida com tsuru
andrewsmedina
3
140
TDD for Dummies
andrewsmedina
3
380
Other Decks in Programming
See All in Programming
非同期jobをtransaction内で 呼ぶなよ!絶対に呼ぶなよ!
alstrocrack
0
610
Catch Up: Go Style Guide Update
andpad
0
210
CSC509 Lecture 05
javiergs
PRO
0
300
スマホから Youtube Shortsを見られないようにする
lemolatoon
2
520
Le côté obscur des IA génératives
pascallemerrer
0
140
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
260
Cloudflare AgentsとAI SDKでAIエージェントを作ってみた
briete
0
130
ソフトウェア設計の実践的な考え方
masuda220
PRO
4
540
そのpreloadは必要?見過ごされたpreloadが技術的負債として爆発した日
mugitti9
2
3.2k
overlayPreferenceValue で実現する ピュア SwiftUI な AdMob ネイティブ広告
uhucream
0
170
CSC305 Lecture 01
javiergs
PRO
1
400
なぜGoのジェネリクスはこの形なのか? Featherweight Goが明かす設計の核心
ryotaros
7
1.1k
Featured
See All Featured
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
35
3.2k
What's in a price? How to price your products and services
michaelherold
246
12k
KATA
mclloyd
32
15k
How GitHub (no longer) Works
holman
315
140k
The Cost Of JavaScript in 2023
addyosmani
53
9k
It's Worth the Effort
3n
187
28k
Music & Morning Musume
bryan
46
6.8k
Context Engineering - Making Every Token Count
addyosmani
5
210
Docker and Python
trallard
46
3.6k
The Art of Programming - Codeland 2020
erikaheidi
56
14k
Learning to Love Humans: Emotional Interface Design
aarron
274
41k
Building Adaptive Systems
keathley
43
2.8k
Transcript
let’s go @andrewsmedina http://andrewsmedina.com let’s go Saturday, May 11, 2013
globo .com @andrewsmedina ‣ dev na globo.com ‣ faz parte
do time do tsuru paas ‣ contribui com projetos opensource (django, circus, splinter...) ‣ profeta nas horas vagas Saturday, May 11, 2013
globo .com por que go? Saturday, May 11, 2013
globo .com linguagens estáticas ‣ rápidas ‣ erros a nível
de compilação Saturday, May 11, 2013
globo .com http://www.thinkgeek.com/product/dac0/ Saturday, May 11, 2013
globo .com linguagens estáticas ‣ verbosas ‣ build lento Saturday,
May 11, 2013
globo .com linguagens dinâmicas ‣ sintaxe agradável Saturday, May 11,
2013
globo .com http://media.npr.org/assets/img/2012/08/20/slow-f7c667bbe3c1b9c54cf5061ade96c6799cef281b-s6-c10.jpg Saturday, May 11, 2013
globo .com linguagens dinâmicas ‣ lentas ‣ erro em runtime
Saturday, May 11, 2013
globo .com goals ‣ concorrência ‣ eficiência ‣ fácil ‣
divertida Saturday, May 11, 2013
globo .com let’s go Saturday, May 11, 2013
globo .com hello world package main import "fmt" func main()
{ fmt.Println("hello devcamp!") } Saturday, May 11, 2013
globo .com hello world 2 - a missão package main
import "fmt" func main() { nome := “andrews” fmt.Printf("meu nome é %s\n", nome) } Saturday, May 11, 2013
globo .com tipagem (estática) ‣ estática ‣ inferência de tipos
Saturday, May 11, 2013
globo .com for package main import "fmt" func main() {
for i := 0; i <= 10; i++ { fmt.Println(i) } } Saturday, May 11, 2013
globo .com primos func ehPrimo(numero int) bool { for i
:= 2; i < numero; i++ { if numero % i == 0 { return false } } return true } Saturday, May 11, 2013
globo .com primos cont.. func main() { numeros := []int{3,
5, 6, 7, 10, 11, 22, 32, 43, 111} for _, numero := range numeros { if ehPrimo(numero) { fmt.Printf("%d é primo.\n", numero) } } } Saturday, May 11, 2013
globo .com slices ‣ []type{item1, item2...} ‣ []int{1,2,3} Saturday, May
11, 2013
globo .com maps ‣ map[type]type ‣ map[string]string Saturday, May 11,
2013
globo .com types type Carro struct { Modelo string }
Saturday, May 11, 2013
globo .com types c := Carro{Modelo: "Gol"} Saturday, May 11,
2013
globo .com methods type Carro struct { Modelo string }
func (c *Carro) Acelera() { fmt.Printf("acelerando um %s...\n", c.Modelo) } Saturday, May 11, 2013
globo .com methods c := Carro{Modelo: "Gol"} c.Acelera() Saturday, May
11, 2013
globo .com interfaces type Aceleravel interface { Acelera() } Saturday,
May 11, 2013
globo .com interfaces type Moto struct { Modelo string }
func (m *Moto) Acelera() { fmt.Printf("vrummmmm\n") } Saturday, May 11, 2013
globo .com interfaces func aceleraQualquerCoisa(items []Aceleravel) { for _, aceleravel
:= range items { aceleravel.Acelera() } } Saturday, May 11, 2013
globo .com interfaces c := Carro{Modelo: "Gol"} m := Moto{Modelo:
"Harley"} aceleraQualquerCoisa([]Aceleravel{&c, &m}) Saturday, May 11, 2013
globo .com concorrência Saturday, May 11, 2013
globo .com bebedouro func main() { pessoas := []string{"andrews", "linus",
"fowler"} for _, p := range pessoas { pegaAgua(p) go bebeAgua(p) } time.Sleep(1) } Saturday, May 11, 2013
globo .com goroutine ‣ “go” Saturday, May 11, 2013
globo .com channels func soma(x, y int, c chan int)
{ c <- x + y } func main() { c := make(chan int) go soma(1, 1, c) go soma(2, 2, c) x, y := <-c, <-c fmt.Println(x+y) } Saturday, May 11, 2013
globo .com channels ‣ <- ‣ chan int Saturday, May
11, 2013
globo .com baterias incluídas ‣ crypto ‣ encoding ‣ html/template
‣ image ‣ log/syslog ‣ net/http, net/mail, net/smtp Saturday, May 11, 2013
globo .com baterias incluídas package main import ( "fmt" "net/http"
) func main() { http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, "devcamp 2013") }) http.ListenAndServe("127.0.0.1:3333", nil) } Saturday, May 11, 2013
globo .com baterias incluídas package main import ( "os" "text/template"
) func main() { t, _ := template.New("foo").Parse("Hello, {{.}}!") t.Execute(os.Stdout, "devcamp 2013") } Saturday, May 11, 2013
globo .com quem já está usando go ‣ google ‣
heroku ‣ mozilla ‣ globo.com ‣ canonical Saturday, May 11, 2013
globo .com #comofaz? ‣ http://tour.golang.org/ ‣ http://golang.org/doc/install ‣ http://golang.org/doc/code.html ‣
http://golang.org/doc/effective_go.html Saturday, May 11, 2013
let’s go @andrewsmedina http://andrewsmedina.com dúvidas? Saturday, May 11, 2013