Write Test Maintain And Deploy Javascript And Typescript Web Applications Using

JavaScript and TypeScript have become indispensable languages for web developers. They allow the creation of dynamic and interactive web applications, making the user experience more engaging and intuitive. To fully leverage the power of these languages, developers need to follow best practices for writing, testing, maintaining, and deploying web applications. In this article, we will explore the process of developing web applications using JavaScript and TypeScript.

When starting a new web application project, it is important to define its purpose and scope. This will help prioritize features, plan the development process, and ensure a seamless deployment. Once the project requirements are clear, developers can start writing code using either JavaScript or TypeScript.

Writing JavaScript Web Applications

JavaScript is a versatile programming language that allows developers to build client-side and server-side applications. Writing JavaScript web applications involves creating interactive elements, manipulating the DOM, and handling user events. To ensure code quality and maintainability, developers should follow coding conventions and modularize their code.

Deno Web Development: Write, test, maintain, and deploy JavaScript and TypeScript web applications using Deno

by Alexandre Portela dos Santos(1st Edition, Kindle Edition)

4 out of 5

Language	:	English
Hardcover	:	247 pages
Item Weight	:	1.19 pounds
Dimensions	:	6.14 x 0.63 x 9.21 inches
File size	:	3537 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Print length	:	310 pages

FREE

There are various frameworks and libraries available for JavaScript development, such as React, Angular, and Vue.js. These frameworks provide a structure for building scalable and maintainable web applications. Developers should choose a framework that aligns with their project requirements and familiarity.

In addition to writing code, developers should also consider testing their JavaScript web applications to catch bugs and ensure proper functionality. Unit testing frameworks like Jest and Mocha can help automate the testing process and provide code coverage reports. Writing test cases for different scenarios can prevent regressions and improve the robustness of the application.

Writing TypeScript Web Applications

TypeScript is a superset of JavaScript that adds static typing and other features to the language. It offers better tooling, code completion, and error detection during development. Writing TypeScript web applications involves defining types, interfaces, and classes to provide better code organization and maintainability.

TypeScript can be transpiled to JavaScript, ensuring compatibility across different browsers and platforms. This allows developers to leverage the latest features of JavaScript while providing type safety and improved development productivity. Tools like TSLint and ESLint can enforce coding standards and catch potential errors during development.

Similar to JavaScript, developers should also incorporate testing into their TypeScript web applications. The testing frameworks and techniques used in JavaScript, such as unit testing and integration testing, can be applied to TypeScript as well. Writing comprehensive test cases and automating the testing process can ensure the reliability and stability of the application.

Maintaining and Deploying Web Applications

Once the web application is developed, it is crucial to ensure its ongoing maintenance and deployment. Regular updates, bug fixes, and performance optimizations are necessary to keep the application running smoothly. Version control systems like Git can help track changes and collaborate with other developers on the project.

For deployment, developers can choose from various options depending on the project requirements. Deploying web applications can be done on traditional web servers, cloud platforms like AWS or Azure, or using serverless architectures. Continuous integration and continuous deployment (CI/CD) pipelines can automate the deployment process, allowing for faster and more reliable releases.

, writing, testing, maintaining, and deploying web applications using JavaScript and TypeScript require careful planning and adherence to best practices. Both languages offer unique benefits and tools that can enhance the development process. By following coding standards, writing test cases, and utilizing deployment automation, developers can create robust and scalable web applications that provide an exceptional user experience.

Deno Web Development: Write, test, maintain, and deploy JavaScript and TypeScript web applications using Deno

by Alexandre Portela dos Santos(1st Edition, Kindle Edition)

4 out of 5

Language	:	English
Hardcover	:	247 pages
Item Weight	:	1.19 pounds
Dimensions	:	6.14 x 0.63 x 9.21 inches
File size	:	3537 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Print length	:	310 pages

FREE

A curious JavaScript developer's practical guide to deep dive into Deno and get the most out of it for building secure web applications

Key Features

• Understand Deno’s essential concepts and features
• Learn how to use Deno in real-world scenarios
• Use Deno to develop, test, and deploy web applications and tools

Book Description

Deno is a JavaScript and TypeScript runtime with secure defaults and a great developer experience. With Deno Web Development, you'll learn all about Deno's primitives, its principles, and how you can use them to build real-world applications. The book is divided into three main sections: an to Deno, building an API from scratch, and testing and deploying a Deno application.

The book starts by getting you up to speed with Deno's runtime and the reason why it was developed. You'll explore some of the concepts introduced by Node, why many of them transitioned into Deno, and why new features were introduced. After understanding Deno and why it was created, you will start to experiment with Deno, exploring the toolchain and writing simple scripts and CLI applications. As you progress to the second section, you will create a simple web application and then add more features to it. This application will evolve from a simple 'hello world' API to a web application connected to the database, with users, authentication, and a JavaScript client. In the third section, the book will take you through topics such as dependency management, configuration and testing, finishing with an application deployed in a cloud environment.

By the end of this web development book, you will become comfortable with using Deno to create, maintain, and deploy secure and reliable web applications.

What you will learn

• Understand why you should use Deno
• Get to grips with tooling and the Deno ecosystem
• Build Deno web applications using existing Node.js knowledge and the newest ECMA Script 6 features
• Explore the standard library and the benefits of Deno’s security model
• Discover common practices and web frameworks to build a REST API in Deno
• Structure a web application using common architecture practices
• Test and deploy a Deno application in the cloud using Docker

Who this book is for

This book is for web developers who want to leverage their JavaScript and TypeScript skills in a secure, simple, and modern runtime, using Deno for web app development. Beginner-level knowledge of Node.js is recommended but not required.

Table of Contents

1. What is Deno?
2. The Toolchain
3. The Runtime and Standard Library
4. Building a Web Application
5. Adding Users and Migrating to Oak
6. Adding Authentication and Connecting to the Database
7. HTTPS, Extracting Configuration, and Deno in the Browser
8. Testing - Unit and Integration
9. Deploying a Deno Application
10. What's Next?