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

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "If we want to create a class to represent the client details, we could name it ClientDetails."

A block of code is set as follows:

Ext.define('Packt.model.film.Film', {
    extend: 'Packt.model.staticData.Base', //#1

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

Ext.application({
    name: 'Packt',

    extend: 'Packt.Application',
    
    autoCreateViewport: 'Packt.view.main.Main'
});

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

sencha generate app Packt ../masteringextjs

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Scroll until the end of the page and select OPEN SOURCE GPL LICENSING."