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Scoop.it!
Clojure is a Lisp-based language that compiles and executes on the JVM. WithClojureScript, Clojure can be cross-compiled to JavaScript. Developing a SPA in a language like ClojureScript allows developers to utilize Clojure’s features like static type safety and immutability when working with large or complex applications. The Om project allows a developer using ClojureScript to interface with React in a client-side application. Let’s get started using React and Om to build a SPA. 
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Scoop.it!
While very happy with om so far, most of the introductory material out there focuses on complex apps and features, and when starting out, we fell like simple introductions were missing. Hopefully the following can help bridge that gap, assuming a familiarity with the clojure language. Compared to angular, om does not provide any standard way to structure apps. This is in part due to the fact that om is fairly recent, but also to the fact that the clojure community puts a bigger emphasis on libraries than framework, which do not impose as much on their consumers.
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Scoop.it!
In order to gain hands-on experiences with functional programming, I wrote an HTML5 card game with Om, a “JavaScript MVC” written in ClojureScript.
Jan Hesse's insight:
Scoop.it!
In our experience developing web, iOS, and backend applications, we’ve found that much (if not most) coupling, complexity, and bugs are a direct result of managing changes to application state. With ClojureScript and Om (a ClojureScript interface to React), we’ve finally found an architecture that shoulders most of this burden for us on the web. Two months ago, we rewrote ourwebapp in this architecture, and it’s been a huge boost to our productivity while maintaining snappy runtime performance. This new codebase weighs in at just under 5k lines of ClojureScript (excluding libraries), about five times smaller than our previous ClojureScript codebase. Of course, size isn’t everything. Every member of our backend team has made significant contributions to the new codebase, which says a lot about its readability and accessibility. Read on for more details about how we’ve been iterating faster with ClojureScript, React, and Om.
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