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: "Instead of setting the actual Modal component to be transparent, we set the transparency in the backgroundColor, which gives the look of an overlay."

A block of code is set as follows:

import React, { Component } from 'react'; 
import { 
  AppRegistry, 
  View, 
} from 'react-native'; 
 
import styles from './styles'; 
 
// Imports our own platform-independent "DatePicker" 
// and "TimePicker" components. 
import DatePicker from './DatePicker'; 
import TimePicker from './TimePicker';

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

npm install react-native-vector-icons --save
react-native link

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: "Again, the same principle with the ToastAndroid API applies here. You might have noticed that there's another button in addition to the Show Notification button. "