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

Routes and views

Routes and views are the foundation of how a RESTful application's URLs act as pathways to its logic and how content is presented back to the user. Routes will determine what parts of code correspond to the URLs of the application's interface. Views determine what is displayed, either to a browser, another API, or other programmatic access.

To further understand the structure of an Express application, we can examine its routes and views:

  1. First of all, let's open our Express application in your favorite IDE. I'm going to be working with VS Code. If you use VS Code, Atom, Sublime, or another IDE that has command-line tools, I highly recommend installing them. For example, with Atom, you can launch a multi-panel Atom editing interface by typing atom . in the command prompt and opening that directory in Atom.
  1. Similarly, VS Code will do this with code .. Here's what this looks like:
Figure 13.4 - VS Code

I've expanded the directories on...