There are many server-side languages: Java, PHP, Ruby, Go, and our friend Python, just to name a few. So, why would we want to use JavaScript as a server-side language? One answer is to reduce context switching. In theory, the same developer can write both the front- and backend of a web application with a minimum of mental changes. The research behind the cost of switching programming languages is light so far and tends to be highly anecdotal, but some studies have shown that the cognitive overhead of switching from one task to another and back again reduces productivity and increases the length of time it takes to complete a task. By extension, switching from JavaScript to Python requires a few mental gymnastics. Of course, with practice, this mental overhead becomes unimportant (think of a translator who can in real time listen to one language and translate this to a different language). However, with the speed at which technology changes, reaching...
Hands-on JavaScript for Python Developers
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Hands-on JavaScript for Python Developers
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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.
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Table of Contents (26 chapters)
Preface
Section 1 - What is JavaScript? What is it not?
Free Chapter
The Entrance of JavaScript into Mainstream Programming
Can We Use JavaScript Server-Side? Sure!
Nitty-Gritty Grammar
Data and Your Friend, JSON
Section 2 - Using JavaScript on the Front-End
Hello World! and Beyond: Your First Application
The Document Object Model (DOM)
Events, Event-Driven Design, and APIs
Working with Frameworks and Libraries
Deciphering Error Messages and Performance Leaks
JavaScript, Ruler of the Frontend
Section 3 - The Back-End: Node.js vs. Python
What Is Node.js?
Node.js versus Python
Using Express
React with Django
Combining Node.js with the Frontend
Enter Webpack
Section 4 - Communicating with Databases
Security and Keys
Node.js and MongoDB
Putting It All Together
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