You're reading from Building Data-Driven Applications with Danfo.js A practical guide to data analysis and machine learning using JavaScript

Product type Paperback

Published in Sep 2021

Publisher Packt

ISBN-13 9781801070850

Length 476 pages

Edition 1st Edition

Languages

JavaScript

Tools

Danfo.js

Concepts

Data Analysis

Authors (2):

Stephen Oni

Rising Odegua

View More author details

Table of Contents (18) Chapters

Preface

1. Section 1: The Basics

2. Chapter 1: An Overview of Modern JavaScript FREE CHAPTER

3. Section 2: Data Analysis and Manipulation with Danfo.js and Dnotebook

4. Chapter 2: Dnotebook - An Interactive Computing Environment for JavaScript

5. Chapter 3: Getting Started with Danfo.js

6. Chapter 4: Data Analysis, Wrangling, and Transformation

7. Chapter 5: Data Visualization with Plotly.js

8. Chapter 6: Data Visualization with Danfo.js

9. Chapter 7: Data Aggregation and Group Operations

10. Section 3: Building Data-Driven Applications

11. Chapter 8: Creating a No-Code Data Analysis/Handling System

12. Chapter 9: Basics of Machine Learning

13. Chapter 10: Introduction to TensorFlow.js

14. Chapter 11: Building a Recommendation System with Danfo.js and TensorFlow.js

15. Chapter 12: Building a Twitter Analysis Dashboard

16. Chapter 13: Appendix: Essential JavaScript Concepts

17. Other Books You May Enjoy

Understanding the fundamentals of JavaScript

In this section, as a memory refresher, we'll quickly go over the basic concepts of modern JavaScript. If you are familiar with JavaScript, then you can skip this section.

As we have repeatedly mentioned, JavaScript can be used for both frontend and server-side scripting, so there is syntax or features that are particular to each environment— for instance, browser-side JavaScript does not have access to filesystems such as Node.js because of security reasons. So, in this section, we'll introduce concepts that can work in both environments/any environment.

Declaring variables

Variables are named storage for data. They can be used to store data that JavaScript can manipulate or work with. In JavaScript, you can define variables using two main keywords, const and let, although in older scripts, you'll find the var keyword used for declaring variables. Using var for variable declaration is generally discouraged...