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: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

function logTimeUp() {
  console.log(“Time up!”);
}
setTimeout(logTimeUp, 1000);

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

dataPromise()
  .then(data => console.log(`Here is ${data}`));

// Here is some important data!

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

npm install Koa

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."