Go Standard Library Cookbook

How to do it...

1. Open the console and create the folder chapter02/recipe11.
2. Navigate to the directory.
3. Create a file named whitespace.go with the following content:

        package main        import (          "fmt"          "math"          "regexp"          "strconv"          "strings"        )        func main() {          stringToTrim := "\t\t\n Go \tis\t Awesome \t\t"          trimResult := strings.TrimSpace(stringToTrim)          fmt.Println(trimResult)          stringWithSpaces := "\t\t\n Go \tis\n Awesome \t\t"          r := regexp.MustCompile("\\s+")          replace := r.ReplaceAllString(stringWithSpaces, " ")          fmt.Println(replace)          needSpace := "need space"          fmt.Println(pad(needSpace, 14, "CENTER"))          fmt.Println(pad(needSpace, 14, "LEFT"))        }        func pad(input string, padLen int, align string) string {          inputLen := len(input)          if inputLen >= padLen { return input ...