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What is the meaning of polyfills in HTML5?

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What does “atomic” mean in programming?

... or have no apparent effect. So, for instance, in the context of a database system, one can have 'atomic commits', meaning that you can push a changeset of updates to a relational database and those changes will either all be submitted, or none of them at all in the event of failure, in this way...
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Join vs. sub-query

... Yes, most databases therefore includes it as an optimization step to convert subqueries into joins when it is analyzing your query. – Cine May 28 '10 at 9:38 ...
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HashMap get/put complexity

...h ought to be good. On top of that, what you may not know (again, this is based in reading source - it's not guaranteed) is that HashMap stirs the hash before using it, to mix entropy from throughout the word into the bottom bits, which is where it's needed for all but the hugest hashmaps. That hel...
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How can I create a correlation matrix in R?

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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”

..._user` (`pid`,`uid`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 Primary key is based on both columns of this quick reference table. A Primary key requires unique values. Let's begin: INSERT INTO users_partners (uid,pid) VALUES (1,1); ...1 row(s) affected INSERT INTO users_partners (uid,pid) VALUES (...
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Calling a Method From a String With the Method's Name in Ruby

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Is it possible to use Razor View Engine outside asp.net

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Using msbuild to execute a File System Publish Profile

...sh targets do all what you are doing above, it selects the correct targets based on the config. I got mine to work no problem from TeamCity MSBuild step, but I did specify an explicit path to the profile, you just have to call it by name with no .pubxml (e.g. FileSystemDebug). It will be found so l...
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how do you filter pandas dataframes by multiple columns

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