Comments on: Johnson: Wrapping JavaScript in a loving Ruby embrace, and ARAX

By: cjac

cjac — Sat, 16 Aug 2008 03:12:04 +0000

firefox installer:
http://go-mono.com/moonlight/index.aspx

By: cjac

cjac — Fri, 15 Aug 2008 15:13:04 +0000

Hey folks,

Please note that Silverlight is not reliant on Microsoft’s good will. The Mono project has created an implementation entirely without dependence on Microsoft IP. The Silverlight == Microsoft argument is a red herring.

http://mono-project.com/Moonlight

Cheers,

C.J.

By: holts

holts — Tue, 10 Jun 2008 15:17:44 +0000

Johnson == Awesome? Yes. Imagine the testing that can be done once these guys integrate Johnson into Mechanize — complete DOM traversal *and* JS execution via Ruby?? These guys even have a Johnson interactive “jrb” shell! …J. Barnette, A. Patterson (aka ‘tenderlove’), Y. Katz… three super smart guys right there, hats off and congrats to them for this interesting work. –’thanks for sharing your Johnson with the rest of the world’ (gratuitous Johnson joke)

By: KKFC

KKFC — Tue, 10 Jun 2008 00:58:40 +0000

I don’t ruby is necessary for Ajax guys.

By: jbarnette

jbarnette — Mon, 09 Jun 2008 23:00:46 +0000

Beyond being a fun hack, the primary itches we’re scratching with Johnson are server-side testing of JavaScript libraries and frameworks (we’re working hard on jQuery and Prototype’s test suites now) and better web crawling (we’re looking at integration with Mechanize and possibly webrat).

Johnson also exposes a mutable Ruby AST for JavaScript, allowing easy application of AOP-style advice, transforms, or tracing. We also want to make it easy to use JS 1.9+ features and dynamically degrade for less capable browsers.

On on the fun side, using bin/johnson:

js> rb js[:foo] = [1, 2, 3] # bind a Ruby array to a JS global => [1, 2, 3] js> foo => [1, 2, 3] # a transparent proxy to the Ruby array js> foo.collect(function(n) { return n * 2 }) => [2, 4, 6] # the JS function acts as a Ruby proc