Conventions

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: " For example, users/31729. Here, the router will need to find a pattern that matches this string, and the pattern will also specify how to extract the 31729 variable."

A block of code is set as follows:

// Renders the sections of the view. Each section
    // either has a renderer, or it doesn't. Either way,
    // content is returned.
    render() {

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.