Go/Hello World

From charlesreid1

The hello world has three things you'll need to remember:

  • package main
  • import fmt
  • func main

Here we go: 

// hello.go
package main

import "fmt"

func main() {
    fmt.Println("hello world")
}

Now we run the program directly: 

$ go run hello-world.go
hello world

or, use an intermediate compilation step: 

$ go build hello-world.go
$ ls
hello-world	hello-world.go

$ ./hello-world
hello world


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first steps:

Go/Installing  · Go/Basics

Go/Strings  · Go/Arrays  · Go/Slices

Go/FileIO


data structures:

Go/Lists  · Go/Maps  · Go/Stacks  · Go/Queues


software engineering:

Go/Naming Conventions  · Go/Design Patterns


performance:

Go/Timing  · Go/Profiling  · Go/Benchmarking


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Go/Tests  · Go/Travis CI  · Go/Makefiles

Go/Packages


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