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Are Java static initializers thread safe?
... be loaded by multiple class-loaders so addController may still get called more than once (regardless of whether or not you synchronize the call)...
– Matthew Murdoch
May 18 '09 at 17:00
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Can I restore a single table from a full mysql mysqldump file?
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For not adding/removing DROP TABLE, it is more useful to match by Table structure for table comment, instead of matching by CREATE TABLE. This will ensure that next table would not be dropped if one forgets to remove its DROP TABLE statement, and allows piping for si...
Best approach to remove time part of datetime in SQL Server
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For more recent versions of SQL, using date instead of datetime avoids the need to deal with hours. Use the following sample: declare noTime date = getdate(), withTime datetime = getdate() select @noTime,@withTime
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Server.UrlEncode vs. HttpUtility.UrlEncode
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Find first element in a sequence that matches a predicate
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@geekazoid: seq.find(&method(:predicate)) or even more concise for instance methods e.g.: [1,1,4].find(&:even?)
– jfs
Jul 20 '15 at 5:07
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MongoDb query condition on comparing 2 fields
...ind( { $where: function() { return this.Grade1 > this.Grade2 } } );
or more compact:
db.T.find( { $where : "this.Grade1 > this.Grade2" } );
UPD for mongodb v.3.6+
you can use $expr as described in recent answer
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Tables instead of DIVs [duplicate]
...le; use it when you have tabular data, but not otherwise.
Then you have a more semantic page and you don't need quite as many classes defined in your CSS; you can target the tags directly instead. Possibly most importantly, you have a page that will score much better with Google (anecdotally) than...
What's the difference between echo, print, and print_r in PHP?
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print and echo are more or less the same; they are both language constructs that display strings. The differences are subtle: print has a return value of 1 so it can be used in expressions whereas echo has a void return type; echo can take mult...
Access parent URL from iframe
...ll possible to get the URL depending on the context. See other answers for more details.
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Convert PDF to image with high resolution
...nswered Jul 7 '11 at 2:06
JBWhitmoreJBWhitmore
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