Conventions used

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

Code in text: 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 x variable is declared with a value of 100 using the := symbol."

A block of code is set as follows:

const (
    app_name = 'V on Wheels'
    max_connections = 1000
    decimal_places = 2
    pi = 3.14
)

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

import json
fn main() {
	m := Note{
		id: 2
		message: 'Get groceries'
		status: false
	}
	j := json.encode(m)
	println(j)
}

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

sudo apt -y update sudo apt install -y build-essential

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: "Now select the Body tab, and check the raw radio button."

Tips or important notes

Appear like this.