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)
1
Section 1 - What is JavaScript? What is it not?
6
Section 2 - Using JavaScript on the Front-End
13
Section 3 - The Back-End: Node.js vs. Python
20
Section 4 - Communicating with Databases

History and usage

First released in 2009, Node.js has been widely adopted in the industry by major corporations and smaller companies alike. There are literally thousands of packages available for use in Node.js, creating a rich ecosystem of users and a community of developers. As with any open source project, community support is crucial to the adoption and longevity of the technology.

From a technical standpoint, Node.js is a runtime environment in a single-threaded event loop. What this means in practice is that it can handle thousands upon thousands of concurrent connections without the overhead of switching between contexts. For those who are more familiar with other architectural patterns, a single thread might seem counterintuitive, and it used to be held up as an example of Node.js's perceived breakpoint. However, it can be argued that the stability and reliability of a Node.js system has shown this paradigm to be sustainable. There are ways to augment a server's capacity...