Book Image

Hands-on JavaScript for Python Developers

By : Sonyl Nagale
Book Image

Hands-on JavaScript for Python Developers

By: Sonyl Nagale

Overview of this book

Knowledge of Python is a great foundation for learning other languages. This book will help you advance in your software engineering career by leveraging your Python programming skills to learn JavaScript and apply its unique features not only for frontend web development but also for streamlining work on the backend. Starting with the basics of JavaScript, you’ll cover its syntax, its use in the browser, and its frameworks and libraries. From working with user interactions and ingesting data from APIs through to creating APIs with Node.js, this book will help you get up and running with JavaScript using hands-on exercises, code snippets, and detailed descriptions of JavaScript implementation and benefits. To understand the use of JavaScript in the backend, you’ll explore Node.js and discover how it communicates with databases. As you advance, you’ll get to grips with creating your own RESTful APIs and connecting the frontend and backend for holistic full-stack development knowledge. By the end of this Python JavaScript book, you’ll have the knowledge you need to write full-fledged web applications from start to finish. You’ll have also gained hands-on experience of working through several projects, which will help you advance in your career as a JavaScript developer.
Table of Contents (26 chapters)
Section 1 - What is JavaScript? What is it not?
Section 2 - Using JavaScript on the Front-End
Section 3 - The Back-End: Node.js vs. Python
Section 4 - Communicating with Databases

NCSA and the need for interactivity

The early internet was a fairly boring place compared with the rich medium we now have in the 21st century. Without graphical browsers and only fairly rudimentary (and esoteric) commands, early adopters were able to do only certain academic tasks for a period of time. Starting from ARPANET (the Advanced Research Projects Agency Network), it was designed to facilitate basic communication and file transfers by being one of the first packet-switching networks. Additionally, it was the first network to implement the Transmission Control Protocol/Internet Protocol (TCP/IP) suite, which we now take for granted as it runs behind the scenes of all modern web applications.

Why is this significant? The early internet was designed for fundamental and simple purposes, but it has grown since then. As a Python developer, you already understand the power of the modern web, so a full history of the web isn't needed. Let's skip to the origins of what we now know as the frontend.

Enter Tim Berners-Lee in 1990: the invention of the World Wide Web. By building the first web browser himself and with the European Organization for Nuclear Research (known as CERN) creating the first website, the floodgates opened and the world was never the same. What started as academic tinkering has now become a global necessity, with millions of people around the globe relying on the web. It goes without saying that today, in the 21st century, we use the web and multiple forms of digital communication to go about our everyday lives.

One of the projects that Berners-Lee created was HTMLHypertext Markup Language. As the backbone of a website, this basic markup language spawned significant growth and development in the computing community. It only took a few years (the year was 1993, to be precise) for Mosaic, the first iteration of what we now call a browser, to be released. It was developed by the NCSA at the University of Illinois at Urbana-Champaign and was a vital part of the web's development.