The document discusses CoffeeScript, a programming language that compiles to JavaScript. It aims to provide a cleaner syntax compared to JavaScript by drawing inspiration from Python and Ruby. CoffeeScript complies with JSLint and produces readable output. It works well with libraries like jQuery, Underscore.js, and the Raphael JavaScript library. CoffeeScript can also be used to build Node.js backends. However, the author notes that CoffeeScript is still pre-version 1.0, so the language may continue to evolve.

1. 5 Minutes about my recent dive into
CoffeeScript
Thursday, 2 September 2010

2. Javascript is a
powerful, lambda-
based language
trapped in a
misleading C syntax
and made difficult by
design flaws.
Thursday, 2 September 2010

3. JSLint compliant, well-mannered
Javascript is a bit unnatural
==
void
var
var foo = function foo( ) {};
undefined, null, falsy
new Boolean(false)
Switch fall through on string only
Loose typing / objects
Global variables
Unintended shadowing
Thursday, 2 September 2010

4. The language I want it to be
(examples)
Thursday, 2 September 2010

5. Simpler, cleaner JS
Python, Ruby, yaml
inspired functional
OO language that
compiles to the good
parts of JS.
Available as a Node.JS
utility.
Thursday, 2 September 2010

6. JSLint compliant, readable output
(try the website)
Courtesy: http://jashkenas.github.com/coffee-script/
Thursday, 2 September 2010

7. Nice with JQuery and Underscore.js
(In fact the author jashkenas @ Github ported Underscore.js to CoffeeScript)
Thursday, 2 September 2010

8. Structure your prototypes
(sample)
CoffeeScript and Raphaël
Thursday, 2 September 2010

9. CoffeeScript with Node.JS backend
Credit: dhotson @ tumblr
Thursday, 2 September 2010

10. Jison parser
Compiler written in CoffeeScript
http://jashkenas.github.com/coffee-script/
http://raphaeljs.com/
Warning: still pre-1.0
It is a moving target
Thursday, 2 September 2010