- Personal background
- Rationale
- ClojureScript Syntax
- Tooling
- Demos
- Outro
Clojure rocks and JavaScript reaches.
Rich Hickey, NYC Clojure meet up 20 July 2011
What is Clojure
- introduced in 2007 by Rich Hickey
- Lisp dialect
- runs on the JVM
Why Clojure rocks
- immutable data structures
- support for concurrency
- macros
- great Java interop
What is ClojureScript?
- compiles Clojure to JavaScript
- outputs ES3 compatible JavaScript
- compiler written in Clojure
- integrates well with Google Closure
Why ClojureScript?
- more robust code
- ECMAScript 3, immutable data structures, advanced optimization
- same language for back-end and front-end
- share code
- great JavaScript interop
- use existing libraries, JS module support
Finally show me some ClojureScript!
Data Structures
Equality
Functions
Higher-order Functions
JS interop - Property access
JS interop - Function invocation
Tooling
- source map support
- REPLs
- plugins for live code reloading
- bootstrapped ClojureScript
Demos
In summary
- more robust and simpler code
- immutability, macros
- advanced optimization through Google Closure
- great JavaScript interop