Nov 13, 2019
Division Operator in C#
Division Operator in C#
Description:
Division Operator in C#
using System; public class Program { public static void Main() { int x = 12; int y = 3; Console.WriteLine(x / y); } }
Output:
4
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Division Operator in C#
Division Operator in C#
Description:
Division Operator in C#
using System; public class Program { public static void Main() { int x = 12; int y = 3; Console.WriteLine(x / y); } }
Output:
4
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Exit Golang Example
Description:
Exit Golang Example
package main import ( "fmt" "os" ) func main() { defer fmt.Println("!") os.Exit(3) }
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Signals Golang Example
Description:
Signals Golang Example
package main import ( "fmt" "os" "os/signal" "syscall" ) func main() { sigs := make(chan os.Signal, 1) done := make(chan bool, 1) signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM) go func() { sig :=
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Exec'ing Processes Golang Example
Exec’ing Processes Golang Example
Description:
Exec’ing Processes Golang Example
package main import ( "os" "os/exec" "syscall" ) func main() { binary, lookErr := exec.LookPath("ls") if lookErr != nil { panic(lookErr) } args := []string{"ls", "-a", "-l", "-h"} env := os.Environ() execErr := syscall.Exec(binary, args, env) if execErr != nil { panic(execErr) } }
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Spawning Processes Golang Example
Spawning Processes Golang Example
Description:
Spawning Processes Golang Example
package main import ( "fmt" "io/ioutil" "os/exec" ) func main() { dateCmd := exec.Command("date") dateOut, err := dateCmd.Output() if err != nil { panic(err) } fmt.Println("> date") fmt.Println(string(dateOut)) grepCmd := exec.Command("grep", "hello") grepIn, _ := grepCmd.StdinPipe() grepOut, _ :=…
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HTTP Servers Golang Example
HTTP Servers Golang Example
Description:
HTTP Servers Golang Example
package main import ( "fmt" "net/http" ) func hello(w http.ResponseWriter, req *http.Request) { fmt.Fprintf(w, "hello\n") } func headers(w http.ResponseWriter, req *http.Request) { for name, headers := range req.Header { for _, h := range headers { fmt.Fprintf(w, "%v: %v\n", name, h) } } } func main() { http.HandleFunc("/hello",…
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HTTP Clients Golang Example
HTTP Clients Golang Example
Description:
HTTP Clients Golang Example
package main import ( "bufio" "fmt" "net/http" ) func main() { resp, err := http.Get("http://gobyexample.com") if err != nil { panic(err) } defer resp.Body.Close() fmt.Println("Response status:", resp.Status) scanner := bufio.NewScanner(resp.Body) for i := 0; scanner.Scan() && i < 5; i++ { fmt.Println(scanner.Text()) } if err :=…
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Environment Variables Golang Example
Environment Variables Golang Example
Description:
Environment Variables Golang Example
package main import ( "fmt" "os" "strings" ) func main() { os.Setenv("FOO", "1") fmt.Println("FOO:", os.Getenv("FOO")) fmt.Println("BAR:", os.Getenv("BAR")) fmt.Println() for _, e := range os.Environ() { pair := strings.SplitN(e, "=", 2) fmt.Println(pair[0]) } }
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