Book Image

Express Web Application Development

By : Hage Yaaapa
Book Image

Express Web Application Development

By: Hage Yaaapa

Overview of this book

Express is a minimal and flexible node.js web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications. It provides a thin layer of features fundamental to any web application, without obscuring features that developers know and love in node.js. "Express Web Application Development" is a comprehensive guide for those looking to learn how to use the Express web framework for web application development. Starting with the initial setup of the Express web framework, "Express Web Application Development" helps you to understand the fundamentals of the framework. By the end of "Express Web Application Development", you will have acquired enough knowledge and skills to create production-ready Express apps. All of this is made possible by the incremental introduction of more advanced topics, starting from the very essentials. On the way to mastering Express for application development, we teach you the more advanced topics such as routes, views, middleware, forms, sessions, cookies and various other aspects of configuring an Express application. Jade; the recommended HTML template engine, and Stylus; the CSS pre-processor for Express, are covered in detail. Last, but definitely not least, Express Web Application Development also covers practices and setups that are required to make Express apps production-ready.
Table of Contents (15 chapters)
Express Web Application Development
About the Author
About the Reviewers


Stylus provides a relatively minimal but efficient programming language in addition to the CSS syntax. Using this programming language, you can make CSS generation dynamic and more flexible.


The Stylus programming language is limited in many ways, and some implementation may still be buggy due its young age.


Although the data type is not strongly defined in Stylus, variables can be broadly classified as literals, lists, and tuples.

Stylus variable identifiers can start with any alphabetical character: $, -, or _ and contain alphanumeric characters along with the aforementioned characters.

The following are some examples of variables in Stylus:

$font-weight = bold
num = 100
vendors = moz webkit ms
-height = (num/5)px 
_width = 200


The most common data type in Stylus is literals. Literals are strings of text that are not lists or tuples, and are interpreted literally.

The following table demonstrates how literal variables can be used in CSS declarations: