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= env.js
* http://github.com/smparkes/env-js
* http://groups.google.com/group/envjs
* #envjs @ freenode
== Description
A browser environment for javascript interpreters.
This is a fork of the env.js project (http://github.com/thatcher/env-js/). See that link for env.js details.
This fork is based on the Johnson Ruby gem
(http://github.com/jbarnette/johnson).
== Installation
For now, you can install the envjs gem by installing Johnson:
gem install johnson --prerelease
and then installing the envjs gem with
gem install envjs
== Using envjs interactively
The envjs gem provides the envjsrb command, which functions as an extended version of the Johnson javascript shell. For example:
mbp:env-js smparkes$ envjsrb
js> this
=> [object Window 0]
js> window.location
=> about:blank
js> document.innerHTML
=> "<html><head><title></title></head><body></body></html>"
js>
== Embedding envjs
It's also possible to embed the envjs interpreter similar to the way it's done in Johnson, e.g.,
require 'rubygems' # if necessary
require 'johnson/tracemonkey'
require 'envjs/runtime'
envjs = Johnson::Runtime.new
envjs.extend Envjs::Runtime
window = envjs.evaluate("window")
puts window.location.to_s # == "about:blank"
puts window.document.innerHTML # == "<html><head><title></title></head><body></body></html>"
envjs.wait
You need the Runtime#wait at the end to give env.js's event loop a chance to execute queued events and timers. You may need to do this at other times as well, depending on the asynchronous nature of your application.
== License
See
http://github.com/smparkes/env-js/blob/envjsrb/licenses/MIT-LICENSE.txt
and
http://github.com/smparkes/env-js/blob/envjsrb/licenses/GPL-LICENSE.txt.
Version data entries
3 entries across 3 versions & 1 rubygems
| Version | Path |
|---|---|
| envjs-0.3.8 | README.rdoc |
| envjs-0.3.7 | README.rdoc |
| envjs-0.3.6 | README.rdoc |