Book Image

Learn Chart.js

By : Helder da Rocha
Book Image

Learn Chart.js

By: Helder da Rocha

Overview of this book

Chart.js is a free, open-source data visualization library, maintained by an active community of developers in GitHub, where it rates as the second most popular data visualization library. If you want to quickly create responsive Web-based data visualizations for the Web, Chart.js is a great choice. This book guides the reader through dozens of practical examples, complete with code you can run and modify as you wish. It is a practical hands-on introduction to Chart.js. If you have basic knowledge of HTML, CSS and JavaScript you can learn to create beautiful interactive Web Canvas-based visualizations for your data using Chart.js. This book will help you set up Chart.js in a Web page and show how to create each one of the eight Chart.js chart types. You will also learn how to configure most properties that override Chart’s default styles and behaviors. Practical applications of Chart.js are exemplified using real data files obtained from public data portals. You will learn how to load, parse, filter and select the data you wish to display from those files. You will also learn how to create visualizations that reveal patterns in the data. This book is based on Chart.js version 2.7.3 and ES2015 JavaScript. By the end of the book, you will be able to create beautiful, efficient and interactive data visualizations for the Web using Chart.js.
Table of Contents (14 chapters)
Title Page
Copyright and Credits
About Packt

Chapter 3. Chart.js - Quick Start

This chapter provides a quick start to creating web-based data visualizations with Chart.js. You will learn how to set up the library and configure a basic web page where you can include a chart. We will walk through a complete step-by-step example, describing how to create a bar chart and configure it with labels, tooltips, titles, interactions, colors, animations, and more. By using Chart.js to create a full-featured chart, you will have a better understanding of the main concepts when we explore the details later on.

In this chapter, you will learn about the following topics:

  • How to install and set up Chart.js
  • How to create a simple bar chart
  • How to configure axes, colors, and tooltips
  • How to add animation and respond to simple events
  • How to create a horizontal and a stacked bar chart