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

Using debuggers and other tools

Many web developers choose to use Google Chrome as their browser of choice as it provides a wealth of developer tools out of the box. If Chrome is not your browser of choice, here are a few browsers that have developer tools that are similar.


Safari ships with developer mode off by default, so if you use Safari, toggle the Develop menu in the Advanced pane in the preferences at the bottom:

Figure 9.7 - Adding the Develop Menu to Safari

Now, you'll have a Develop menu with tools that may render error messages slightly differently than Chrome, but that are still accessible.

Internet Explorer and Microsoft Edge

With all sincerity and only a little bit of prejudice, I would recommend not using Internet Explorer or Microsoft Edge for JavaScript development. It is important to test your code cross-browser, but I find the developer tools provided in IE and Edge to be lacking. For example, let's take a look at the exact same page in Edge&apos...