I recommend that you read the first chapter to make sure that you are up to speed with the basic concepts and fundamentals of Chart.js. In the next chapters, we will see the setup that Chart.js needs and the various visual representation techniques this book will teach us and their uses. There will be tutorials on using the different chart types, and we will explore their interactivity.  

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packt.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packt.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Learn-Charts.js. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

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: "This sets the color to be used in fill() commands."

A block of code is set as follows:

const chartObj = {…}; // the chart data is here
const context = canvas.getContext("2d");
new Chart(context, chartObj); // this will display the chart in the canvas

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

npm install chart.js --save
bower install chart.js --save

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: "You just need to add the Chart.js CDN in the Resources tab."