Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The EventEmitter object is defined in the events module of Node.js."

A block of code is set as follows:

if (anotherNote instanceof Note) {
 ... it's a Note, so act on it as a Note
}

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

$ npm update express
$ npm update

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "If you need something different, click on the DOWNLOADS link in the header for all possible downloads: "