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


One of the principal reasons for creating or using a JavaScript library is to ease repetitive or complex tasks. After all, you can't fundamentally change a language with a plugin or library—all you can do is augment or alter the existing functionality.

As we discussed in Chapter 1, The Entrance of JavaScript into Mainstream Programming, JavaScript's early history was a bit of a Wild West scenario. The browser wars were in full effect, features were not standardized, and even making an Ajax call required two different sets of code: one for Internet Explorer and one for the other browsers.

Enter jQuery in 2006, created by John Resign.

The lack of standardization across browsers was the impetus for creating jQuery. From DOM manipulation to Ajax calls, the syntax and structure of jQuery are a "write once, use in all browsers" paradigm. With the development of ES6 and beyond, JavaScript is getting more standardized. However, there's over a decade of...