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 explanations of their meanings.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We can include other contexts through the use of the include directive."

A block of code is set as follows:

// convert 'satoshi' to bitcoin value 
var satoshiToBTC = function(value) { 
  return value * 0.00000001 
}

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

~ npm install bitcoinjs-lib -g 

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: "Clicking the Next button moves you to the next screen."