...
| Code Block |
|---|
package main
import (
"fmt"
"error"
"math"
)
func main() {
result, err := sqrt(16)
if err != nil {
fmt.Println(err)
} else {
fmt.Println(result)
}
}
func sqrt(x float64) (float64, error ) {
if x < 0 {
return 0, errors.New("Undefined for negative numbers")
}
return math.Sqrt(x), nil
} |
Structs/Types
| Code Block |
|---|
package main
import (
"fmt"
)
type person struct {
name string
age int
}
func main(){
p:= person{name: "Jake", age: 23 }
fmt.Println(p)
} |
Commands
| Command | Description |
|---|---|
| go run <src.go> | Run some code |
| go build | Compile the code. Outputs to local folder. Executable has folder as name. |
| go install | Compiles and places the output in workspace/bin |
| go env GOPATH | Outputs the default workspace folder |
...
| Code Block |
|---|
package main
import (
"fmt"
)
func main(){
var x int
x = 5
fmt.Println(x)
} |
Structs
| Code Block |
|---|
References
| Reference | URL |
|---|---|
| Learn Go in 12 Minutes | https://www.youtube.com/watch?v=C8LgvuEBraI |
| Go Packages | https://golang.org/pkg/ |
| Go By Examples | https://gobyexample.com/ |
...