I am in the process of porting a CLI library from Ruby over to Node.js. In my code I execute several third party binaries when necessary. I am not sure how best to accomplish this in Node.  Here's an example in Ruby where I call PrinceXML to co...
I'm connecting to a web site, logging in.  The website redirects me to new pages and Mechanize deals with all cookie and redirection jobs, but, I can't get the last page. I used Firebug and did same job again and saw that there are two more...
As per 'unobtrusive JavaScript' recommendations I want to separate my JavaScript logic into separate files. However I don't know how to organize them.   Should I:   Just throw all application javascript into Application.js file and load...
Recently I came across a bug/feature in several languages. I have a very basic knowledge about how it's caused (and I'd like some detailed explanation), but when I think of all the bugs I must have made over the years, the question is how c...
This is a challenge to come up with the most elegant JavaScript, Ruby or other solution to a relatively trivial problem.  This problem is a more specific case of the Longest common substring problem. I need to only find the longest common s...
I'm looking for a way, either in Ruby or Javascript, that will give me all matches, possibly overlapping, within a string against a regexp.    Let's say I have str = "abcadc", and I want to find occurrences of a followed by any number...
I'm trying to make a JS snippet work in a concrete page with Rails 4 and Turbolinks. I've tried with the standard solution:  <script type="text/javascript">      var ready = function() {         // Bla bla     };      $(document...
I'm able to decrypt AES encrypted message with Ruby like this:  require 'openssl' require 'base64'  data = "IYkyGxYaNgHpnZWgwILMalVFmLWFgTCHCZL9263NOcfSo5lBjAzOZAtF5bF++R0Bi+9c9E+p3VEr/xvj4oABtRWVJ2wlWzLbYC2rKFk5iapFhb7uZCUpO4...
Is there a known solution to perform Eval (Javascript execution) in Webdriver, Ruby bindings?   The equivalent of the following example in Java.   WebElement element = driver.findElement(By.id( "foo" ));  String name = (String) ((JavascriptEx...
I am having trouble deploying a rails 3.1 beta project to heroku. The problem happened at the database migration step. When I ran:  heroku rake db:migrate   I got error message:  > rake aborted!   > Could not find a JavaScript runtime. See >...

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