Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: " The make() function will create a slice of a certain type with a certain length and capacity."

A block of code is set as follows:

package main

import (
    "fmt"
)

func main() {
   // Basic for loop
   for i := 0; i < 3; i++ {
       fmt.Println("i:", i)
   }

   // For used as a while loop
   n := 5
   for n < 10 {
       fmt.Println(n)
       n++
   }
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

package main

import (
    "fmt"
)

func main() {
   // Basic for loop
   for i := 0; i < 3; i++ {
       fmt.Println("i:", i)
   }

   // For used as a while loop
   n := 5
   for n < 10 {
       fmt.Println(n)
       n++
   }
}

Any command-line input or output is written as follows:

sudo apt-get install golang-go 

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: " In Windows 10, this can be found by navigating to Control Panel | System |
Advanced System Settings | Environment Variables."