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How do I create directory if none exists using File class in Ruby?

...tokens = dirname.split(/[\/\\]/) # don't forget the backslash for Windows! And to escape both "\" and "/" 1.upto(tokens.size) do |n| dir = tokens[0...n] Dir.mkdir(dir) unless Dir.exist?(dir) end share | ...
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How to use a variable for the database name in T-SQL?

I use the database name in several places in my script, and I want to be able to quickly change it, so I'm looking for something like this: ...
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Akka or Reactor [closed]

...g a new project (java-based). I need to build it as a modular, distributed and resilient architecture. 3 Answers ...
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Android webview slow

My android webviews are slow. This is on everything from phones to 3.0+ tablets with more than adequate specs 10 Answer...
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Big-O summary for Java Collections Framework implementations? [closed]

... And this is why we don't use URL's as answers. That document/server, as far as I can tell, is no longer available! – Jason Mock Apr 10 '13 at 16:01 ...
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Can I change the name of `nohup.out`?

When I run nohup some_command & , the output goes to nohup.out ; man nohup says to look at info nohup which in turn says: ...
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How do I iterate through the files in a directory in Java?

... in a directory, including files in all the sub-directories. What is the standard way to accomplish directory iteration with Java? ...
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Type safety: Unchecked cast

...g it to HashMap directly would not cause the problem with the second case (and perhaps there would not be a warning in the first case, I'm not sure how pedantic the Java compiler is with warnings for Java 5). However, you are converting it to a HashMap<String, String>. HashMaps are really map...
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How to dynamically insert a tag via jQuery after page load?

...ems getting this to work. I first tried setting my script tags as strings and then using jquery replaceWith() to add them to the document after page load: ...
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How to check that an object is empty in PHP?

... You can cast to an array and then check if it is empty or not $arr = (array)$obj; if (!$arr) { // do stuff } share | improve this answer ...