Book Image

Mastering TypeScript - Fourth Edition

By : Nathan Rozentals
4.7 (3)
Book Image

Mastering TypeScript - Fourth Edition

4.7 (3)
By: Nathan Rozentals

Overview of this book

TypeScript is both a language and a set of tools to generate JavaScript, designed by Anders Hejlsberg at Microsoft to help developers write enterprise-scale JavaScript. Mastering Typescript is a golden standard for budding and experienced developers. With a structured approach that will get you up and running with Typescript quickly, this book will introduce core concepts, then build on them to help you understand (and apply) the more advanced language features. You’ll learn by doing while acquiring the best programming practices along the way. This fourth edition also covers a variety of modern JavaScript and TypeScript frameworks, comparing their strengths and weaknesses. You'll explore Angular, React, Vue, RxJs, Express, NodeJS, and others. You'll get up to speed with unit and integration testing, data transformation, serverless technologies, and asynchronous programming. Next, you’ll learn how to integrate with existing JavaScript libraries, control your compiler options, and use decorators and generics. By the end of the book, you will have built a comprehensive set of web applications, having integrated them into a single cohesive website using micro front-end techniques. This book is about learning the language, understanding when to apply its features, and selecting the framework that fits your real-world project perfectly.
Table of Contents (19 chapters)
17
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18
Index

An Express application

Now that we have an idea about the basics of Express routing and setup, let's build a two-page application that handles a user login form. Along the way, we will learn about how Express renders application HTML pages, how they can be combined with a generic layout page, and how to serve static files such as CSS and icons. We will also discuss how to handle form input, and how to use session data.

Express templating

Our current route handlers are returning simple messages to the browser. In a real-world application, however, we will need to render complete HTML pages, with a standard HTML structure, including links to CSS stylesheets if necessary, and a header section. Express uses a template engine that allows us to specify the HTML we need for each page, and also provides the mechanism of injecting run-time values into these templates, similar to the template mechanisms of Angular, React, or Vue.

Express supports many different templating engines...