Book Image

Building Data-Driven Applications with Danfo.js

By : Rising Odegua, Stephen Oni
Book Image

Building Data-Driven Applications with Danfo.js

By: Rising Odegua, Stephen Oni

Overview of this book

Most data analysts use Python and pandas for data processing for the convenience and performance these libraries provide. However, JavaScript developers have always wanted to use machine learning in the browser as well. This book focuses on how Danfo.js brings data processing, analysis, and ML tools to JavaScript developers and how to make the most of this library to build data-driven applications. Starting with an overview of modern JavaScript, you’ll cover data analysis and transformation with Danfo.js and Dnotebook. The book then shows you how to load different datasets, combine and analyze them by performing operations such as handling missing values and string manipulations. You’ll also get to grips with data plotting, visualization, aggregation, and group operations by combining Danfo.js with Plotly. As you advance, you’ll create a no-code data analysis and handling system and create-react-app, react-table, react-chart, Draggable.js, and tailwindcss, and understand how to use TensorFlow.js and Danfo.js to build a recommendation system. Finally, you’ll build a Twitter analytics dashboard powered by Danfo.js, Next.js, node-nlp, and Twit.js. By the end of this app development book, you’ll be able to build and embed data analytics, visualization, and ML capabilities into any JavaScript app in server-side Node.js or the browser.
Table of Contents (18 chapters)
1
Section 1: The Basics
3
Section 2: Data Analysis and Manipulation with Danfo.js and Dnotebook
10
Section 3: Building Data-Driven Applications

Quick overview of JavaScript

According to the Stack Overflow 2020 Developer Survey (https://stackoverflow.blog/2020/05/27/2020-stack-overflow-developer-survey-results/), JavaScript (also referred to as JS) is the most common programming language in the world, with approximately 70% of developers using it for one task or another. This statistic is not surprising as JavaScript had been the most popular language for a good number of years before the survey was carried out. There are many reasons why this is so, and we will list some of them here:

  • It runs in the most common and readily available platform—the browser.
  • Numerous useful frameworks such as Node.js, React, and Angular are built around it.
  • It is versatile—that is, it can be used for both frontend and backend applications. For example, you can use JavaScript libraries such as React, Vue, and Angular to build great user interfaces (UIs), while you can use server-side packages such as Node.jS and...