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

Existing standards – linting to the rescue!

We've looked at JavaScript's conventions and norms, but most rules have a caveat that "this could vary" or "this isn't technically required." So, how do we make sense of our code in a malleable, opinion-driven environment? One answer: linting.

Simply put, linting refers to the process of running your code through predefined rules to ensure that not only is it syntactically correct, but it also adheres to proper style rules. This isn't a practice limited to JavaScript; you may have linted your Python code, too. In modern JavaScript, linting has come to be seen as a best practice to ensure your code is consistent. Two of the main style guides in the community are AirBnB ( and Google ( Your code editor probably supports using a linter, but we won't go into using them in practice right now, as each editor varies...