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When to use .First and when to use .FirstOrDefault with LINQ?

... Scratch that, I've found a much nicer way of accomplishing that, use: DefaultIfEmpty(-1).First() – PeterBelm Apr 19 '12 at 9:03 5 ...
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How to try convert a string to a Guid [duplicate]

... Specifically, a GUIDConverter, which is built in. msdn.microsoft.com/en-us/library/… – Joseph Ferris Dec 8 '08 at 19:11 3 ...
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How to use glyphicons in bootstrap 3.0

...an> Here is a helpful list of changes for Bootstrap 3: http://bootply.com/bootstrap-3-migration-guide share | improve this answer | follow | ...
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What's the best solution for OpenID with Django? [closed]

... Unfortunately it's not compatible with django 1.5 - you'll get errors when rendering the templates – Elliott Jul 14 '13 at 19:30 ...
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Why is iterating through a large Django QuerySet consuming massive amounts of memory?

...ctually iterate over. Then you have everything in memory, and the results come spilling out. From my reading of the docs, iterator() does nothing more than bypass QuerySet's internal caching mechanisms. I think it might make sense for it to a do a one-by-one thing, but that would conversely requi...
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How do you deploy your ASP.NET applications to live servers?

... add a comment  |  19 ...
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Why does Math.round(0.49999999999999994) return 1?

...g)floor(a + 0.5d); else return 0; } 1. http://docs.oracle.com/javase/6/docs/api/java/lang/Math.html#round%28double%29 2. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 (credits to @SimonNickerson for finding this) 3. http://docs.oracle.com/javase/7/docs/api/java/l...
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Official way to ask jQuery wait for all images to load before executing something

... as well, such as the images. The difference can be seen in the following complete HTML file, provided you have a jollyroger JPEG files (or other suitable ones): <html>     <head>         <script src="jquery-1.7.1.js"></script>         <script type="text/javasc...
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How can you detect the version of a browser?

...owngrading broswer IE11 to IE10 navigatior user agent showing Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4.0C; .NET4.0E) from string its IE7 with trident/6.0 be careful...
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How to Select Every Row Where Column Value is NOT Distinct

...s that second SELECT...WHERE call many times. See more here: stackoverflow.com/q/9253244/550975 – Serj Sagan Dec 6 '19 at 18:38 ...