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JavaScript check if variable exists (is defined/initialized)

... @George IV: "just do `if( variable ) " -- um, no, that fails for false and 0. – Jason S May 13 '09 at 15:53 17 ...
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What is the difference between background and background-color

...'s the difference between specifying a background color using background and background-color ? 17 Answers ...
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Setting log level of message at runtime in slf4j

...ng log4j, the Logger.log(Priority p, Object message) method is available and can be used to log a message at a log level determined at runtime. We're using this fact and this tip to redirect stderr to a logger at a specific log level. ...
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How to convert URL parameters to a JavaScript object?

... Edit This edit improves and explains the answer based on the comments. var search = location.search.substring(1); JSON.parse('{"' + decodeURI(search).replace(/"/g, '\\"').replace(/&/g, '","').replace(/=/g,'":"') + '"}') Example Parse abc=foo...
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MySQL vs MySQLi when using PHP [closed]

Which is better, MySQL or MySQLi? And why? Which should I use? 6 Answers 6 ...
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Request format is unrecognized for URL unexpectedly ending in

... i kept it as is and for now the error seems to have gone away. if i see the error again i'll move the webservices configs into the webserver section. – Daniel Brink Apr 20 '10 at 8:08 ...
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FragmentPagerAdapter getItem is not called

...or a specific problem they're having; read up on both FragmentPagerAdapter and FragmentStatePagerAdapter. They behave differently for a reason and your specific use might require one over the other. – Chris Stewart Mar 2 '14 at 3:09 ...
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)

...ion. Please don't do that. Your PHP code may have a memory leak somewhere and you are telling the server to just use all the memory that it wants. You wouldn't have fixed the problem at all. If you monitor your server, you will see that it is now probably using up most of the RAM and even swapping...
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Java Set retain order?

Does a Java Set retain order? A method is returning a Set to me and supposedly the data is ordered but iterating over the Set, the data is unordered. Is there a better way to manage this? Does the method need to be changed to return something other than a Set? ...
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How do you format an unsigned long long int using printf?

... Or to be precise it's for GNU libc, and doesn't work with Microsoft's C runtime. – Mark Baker Oct 8 '08 at 9:35 171 ...