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: "To install this Arduino library, simply place the whole library folder inside the /libraries folder of your main Arduino installation folder."

A block of code is set as follows:

var pubnub = require("pubnub")({
    ssl           : true,  // <- enable TLS Tunneling over TCP
    publish_key   : "your_publish_key",
    subscribe_key : "your_subscribe_key"
});

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

unzip ngrok.zip

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: "We will configure our data source here. Select Dweet.io and type in the name of your device."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.