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ExecJS
======
ExecJS lets you run JavaScript code from Ruby. It automatically picks
the best runtime available to evaluate your JavaScript program, then
returns the result to you as a Ruby object.
ExecJS supports these runtimes:
* [therubyracer](https://github.com/cowboyd/therubyracer) - Google V8
embedded within Ruby
* [therubyrhino](https://github.com/cowboyd/therubyrhino) - Mozilla
Rhino embedded within JRuby
* [Node.js](http://nodejs.org/)
* Apple JavaScriptCore - Included with Mac OS X
* [Microsoft Windows Script Host](http://msdn.microsoft.com/en-us/library/9bbdkx3k.aspx) (JScript)
A short example:
require "execjs"
ExecJS.eval "'red yellow blue'.split(' ')"
# => ["red", "yellow", "blue"]
A longer example, demonstrating how to invoke the CoffeeScript compiler:
require "execjs"
require "open-uri"
source = open("http://jashkenas.github.com/coffee-script/extras/coffee-script.js").read
context = ExecJS.compile(source)
context.call("CoffeeScript.compile", "square = (x) -> x * x", :bare => true)
# => "var square;\nsquare = function(x) {\n return x * x;\n};"
# Installation
$ gem install execjs
# License
Copyright (c) 2011 Sam Stephenson and Josh Peek.
Released under the MIT license. See `LICENSE` for details.
Version data entries
56 entries across 56 versions & 4 rubygems