Book Image

Learning ClojureScript

By : W. David Jarvis, Allen Rohner
Book Image

Learning ClojureScript

By: W. David Jarvis, Allen Rohner

Overview of this book

Clojure is an expressive language that makes it possible to easily tackle complex software development challenges. Its bias toward interactive development has made it a powerful tool, enabling high developer productivity. In this book, you will first learn how to construct an interactive development experience for ClojureScript.. You will be guided through ClojureScript language concepts, looking at the basics first, then being introduced to advanced concepts such as functional programming or macro writing. After that, we elaborate on the subject of single page web applications, showcasing how to build a simple one, then covering different possible enhancements. We move on to study more advanced ClojureScript concepts, where you will be shown how to address some complex algorithmic cases. Finally, you'll learn about optional type-checking for your programs, how you can write portable code, test it, and put the advanced compilation mode of the Google Closure Compiler to good use.
Table of Contents (15 chapters)
Learning ClojureScript
About the Authors
About the Reviewer

Routing and HTML5 history

So, at this point, our todo application has some interesting features, but it's very bare bones. It's also literally a single page application, but, of course, real applications typically involve multiple pages. Let's extend ours to have multiple pages.

We've already included bidi as a dependency of the application, and we've already used it on the server side. Now, we will use it to do client-side routing. Here, routing refers to the process of determining which page to display, based on the contents of the URL. Let's get started.

First, we'll modify project.clj and add [venantius/accountant "0.1.7"] to the :dependencies vector. Then, let's add [accountant.core :as accountant] to the om-tut.core ns declaration:

 (ns om-tut.core 
  (:require [accountant.core :as accountant] 
            [ajax.core :as ajax] 
            [bidi.bidi :as bidi] 
            [om.core :as om :include-macros true] 
            [om.dom :as dom :include-macros true...