Introduction to The Go Programming Language

A quick look at Go and what makes it special.

Icons: @iconmonstr
Photos: http://peterhellberg.vsco.co/

Transcript

1. Introduction to
   The Go Programming
   Language
   

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2. @peterhellberg
   

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3. September
   21, 2007
   

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4. March
   28, 20
   

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5. Go 1
   

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6. What is Go?
   

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7. Go is about composition,
   concurrency, and gophers.
   !
   Keep that in mind.
   

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8. Composition
   

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9. Go is Object Oriented,
   but: - NO classes
   - NO subtype inheritance
   - Interfaces are
   satisfied implicitly
   

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11. A statically-typed
    language with syntax
    loosely derived from
    that ofC
    

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12. Concise variable
    declaration and
    initialization through
    type inference
    (x := 0 not int x = 0)
    

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13. Built-in concurrency
    primitives: - goroutines
    - channels
    - select
    

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14. CSP
    http://en.wikipedia.org/wiki/Communicating_sequential_processes
    

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16. A fully garbage
    collected
    language With complete
    control over
    memory layout.
    

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17. Compilation
    Cross c
    

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18. Native machine
    code (32-bit and
    64-bit x86, ARM)
    

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21. ‘Batteries included’
    standard library
    

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22. net
    archive
    database
    crypto
    encoding
    unicode
    compress
    

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25. Hello World!
    

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26. package main
    !
    import “fmt"
    !
    func main() {
    fmt.Println(“Hello World!”)
    }
    

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27. Hello World!
    delivered over HTTP
    

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28. package main
    !
    import (
    “fmt"
    “net/http"
    )
    !
    func main() {
    http.HandleFunc(“/",
    func(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintln(w, “Hello", r.URL.Path[1:])
    })
    !
    http.ListenAndServe(“:8080", nil)
    }
    

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29. curl http://:8080/World!
    go run hello_server.go
    

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30. 25
    50
    75
    100
    Oct 09 Oct 10 Oct 11 Oct 12 Oct 13
    Popularity
    Numbers represent search interest relative to the highest point on the chart.
    

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31. – gobyexample.com
    cAB Reading material BDa
    – learnxinyminutes.com/docs/go
    – golang.org/doc
    

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