This heading explains the working of tasks or instructions that you have just completed.

You will also find some other learning aids in the book, including:

These are short multiple choice questions intended to help you test your own understanding.

These set practical challenges and give you ideas for experimenting with what you have learned.

You will also find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "You can verify that haXe is correctly installed by opening a terminal and running the haxe command; if haXe is correctly installed, then you should get the help message."

A block of code is set as follows:

class Main
{
public static function main()
{
trace("Hello World");
}
}

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

class TesthaXe
{
public static function main(): Void
{
var e = new EReg("^Hello.*",""); //Creates an EReg matching any string beginning with Hello
if(e.match("Hello Benjamin"))
{
neko.Lib.println("Matches");
} else
{
neko.Lib.println("Does not match");
}
}
}

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

X-Cache : MISS from rack1.tumblr.com
X-Cache-Lookup : MISS from rack1.tumblr.com:80
Via : 1.0 rack1.tumblr.com:80 (squid/2.6.STABLE6)
P3P : CP="ALL ADM DEV PSAi COM OUR OTRo STP IND ONL"
Set-Cookie : tmgioct=h6NSbuBBgVV2IH3qzPEPPQLg; expires=Thu, 02-Jul- 2020 23:30:11

New terms and important words are shown in bold. Words that you see on the screen, in menus, or dialog boxes for example, appear in the text like this: "Go to http://www.haxe.org and click on the Download link".