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Module 0x0 | Introduction
Contribution
Beginners
Required Gems
Module 0x1 | Basic Ruby Kung Fu
Module 0x2 | System Kung Fu
Module 0x3 | Network Kung Fu
Module 0x4 | Web Kung Fu
SQL Injection Scanner
Databases
Extending Burp Suite
Browser Manipulation
Web Services and APIs
Ruby 2 JavaScript
Web Server and Proxy
LDAP injection
Module 0x5 | Exploitation Kung Fu
Module 0x6 | Forensic Kung Fu
Module 0x7 | OSINT Kung Fu
References
FAQs
Contributors
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Ruby 2 JavaScript

CoffeeScript

​CoffeeScript is a programming language that transcompiles to JavaScript. It adds syntactic sugar inspired by Ruby, Python and Haskell in an effort to enhance JavaScript's brevity and readability.

Quick CoffeeScript Review

Here a quick how to if CoffeeScript in general
  • Install CoffeScript lib
    1
    npm install -g coffee-script
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  • For live conversion
    1
    coffee --watch --compile script.coffee
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Ruby CoffeScript gem

Ruby CoffeeScript gem is a bridge to the official CoffeeScript compiler.
  • Install CoffeeScript gem
    1
    gem install coffee-script
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  • Convert CoffeeScript file to JavaScript
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#!/usr/bin/env ruby
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require 'coffee-script'
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if ARGF
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file = File.open("#{ARGV[0]}.js", 'a')
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file.write CoffeeScript.compile(ARGF.read)
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end
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Run it
1
ruby coffee2js.rb exploit.coffee
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Opal

Opal is a Ruby to JavaScript source-to-source compiler. It also has an implementation of the Ruby corelib.
  • Install Opal gem
    1
    gem install opal opal-jquery
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[5]: http://js2.coffee/​
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Contents
CoffeeScript
Quick CoffeeScript Review
Ruby CoffeScript gem
Opal