jsmolina/go_tutorial

go_tutorial

an array of 10 pointers to string

If C has: char *str[20];

Go has

str [10]*string

Vars auto initialize

unlike C, booleans will default false, floats to zero, strings to empty string.

var ageofUniverse int defaults to zero.

short declaration

You could assign a value that type is inferred ageofUniverse := 14e9

multiple declares

var (
  ageofUniverse int
  lang = "go"
)

declare and asign

var ageofuniverse uint64

ageofuniverse = 1382000000

swaps (like python)

foo, bar := 1,2 foo, bar = bar, foo

Structs

Go is not exactly object oriented, but structs allow us to define types with fields and methods belonging to them.

type Article struct {
    Id      string `json:"id"`
    Title string `json:"title"`
    Desc string `json:"desc"`
    Content string `json:"content"`
}

func (a Article) FormatArticle() {  
    fmt.Printf("[%s] %s - %s\n", a.Id, a.Title, a.Desc)
}