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Building Enterprise JavaScript Applications

Building Enterprise JavaScript Applications

By : Daniel Li
4.6 (5)
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Building Enterprise JavaScript Applications

Building Enterprise JavaScript Applications

4.6 (5)
By: Daniel Li

Overview of this book

With the over-abundance of tools in the JavaScript ecosystem, it's easy to feel lost. Build tools, package managers, loaders, bundlers, linters, compilers, transpilers, typecheckers - how do you make sense of it all? In this book, we will build a simple API and React application from scratch. We begin by setting up our development environment using Git, yarn, Babel, and ESLint. Then, we will use Express, Elasticsearch and JSON Web Tokens (JWTs) to build a stateless API service. For the front-end, we will use React, Redux, and Webpack. A central theme in the book is maintaining code quality. As such, we will enforce a Test-Driven Development (TDD) process using Selenium, Cucumber, Mocha, Sinon, and Istanbul. As we progress through the book, the focus will shift towards automation and infrastructure. You will learn to work with Continuous Integration (CI) servers like Jenkins, deploying services inside Docker containers, and run them on Kubernetes. By following this book, you would gain the skills needed to build robust, production-ready applications.
Table of Contents (20 chapters)
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1
The Importance of Good Code

What is Node.js?


As you learned in Chapter 2, The State of JavaScript, Node.js is "JavaScript on the server". Before we move forward, let's delve a little deeper into understanding what that means.

Traditionally, JavaScript is interpreted by a JavaScript engine that converts JavaScript code into more optimized, machine-executable code, which then gets executed. The engine interprets the JavaScript code at the time it is run. This is unlike compiled languages such as C#, which must first be compiled into an intermediate language (IL), where this IL is then executed by the common language runtime (CLR), software similar in function to the JavaScript engine.

 

Note

Technically, it is inaccurate to classify a language as interpreted or compiled—how a language is processed depends on the implementation. Someone can build a compiler that converts JavaScript into machine code and run it; in that instance, JavaScript would be a compiled language.However, since JavaScript is almost always interpreted...

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Building Enterprise JavaScript Applications
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