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Cost of storing AMI

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Is there a way to check which CSS styles are being used or not used on a web page?

...the CSS audit tool in Chrome now for the same purpose. Some details here: http://meeech.amihod.com/very-useful-find-unused-css-rules-with-google share | improve this answer | ...
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Case sensitive Cmd+D in Sublime Text 2

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INSERT INTO … SELECT FROM … ON DUPLICATE KEY UPDATE

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Retrieve column names from java.sql.ResultSet

... You can use the the ResultSetMetaData (http://java.sun.com/javase/6/docs/api/java/sql/ResultSetMetaData.html) object for that, like this: ResultSet rs = stmt.executeQuery("SELECT * FROM table"); ResultSetMetaData rsmd = rs.getMetaData(); String firstColumnName = ...
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What is the difference between a pseudo-class and a pseudo-element in CSS?

...c—they’re applied as a result of user interaction with the document. - http://reference.sitepoint.com/css/pseudoclasses. These would be things like :hover, :active, :visited. Pseudo-elements match virtual elements that don’t exist explicitly in the document tree. Pseudo-elements can be dynami...
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Check if SQL Connection is Open or Closed

...then Re-opening the connection "will refresh the value of State." See here http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.state(v=vs.110).aspx share | improve this answe...
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How do you pass custom environment variable on Amazon Elastic Beanstalk (AWS EBS)?

...ation -> Container for more information check the documentation here: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/customize-containers-ec2.html#customize-containers-format-options Update To prevent committing to your repository values like API keys, secrets and so on, you can put a ...
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redis-py : What's the difference between StrictRedis() and Redis()?

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Windows recursive grep command-line

... I recommend a really great tool: native unix utils: http://unxutils.sourceforge.net/ http://en.wikipedia.org/wiki/UnxUtils Just unpack them and put that folder into your PATH environment variable and voila! :) Works like a charm, and there are much more then just grep ;) ...