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Center a popup window on screen?

... SINGLE/DUAL MONITOR FUNCTION (credit to http://www.xtf.dk - thank you!) UPDATE: It will also work on windows that aren't maxed out to the screen's width and height now thanks to @Frost! If you're on dual monitor, the window will center ho...
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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?

...ariable-length which will only use up spaces for the characters you store. It will not reserve storage like char or nchar. nchar and nvarchar will take up twice as much storage space, so it may be wise to use them only if you need Unicode support. ...
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Eclipse reports rendering library more recent than ADT plug-in

... Click Help > Install New Software. In the Work with field, enter: https://dl-ssl.google.com/android/eclipse/ Select Developer Tools / Android Development Tools. Click Next and complete the wizard. ...
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Difference between attr_accessor and attr_accessible

...attrs). Here's a mass assignment: Order.new({ :type => 'Corn', :quantity => 6 }) You can imagine that the order might also have a discount code, say :price_off. If you don't tag :price_off as attr_accessible you stop malicious code from being able to do like so: Order.new({ :type => '...
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How to compare objects by multiple fields

...ields as you like. You can put in a variable in your comparator that tells it which field to compare to, although it would probably be simpler to just write multiple comparators. share | improve thi...
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Difference between Groovy Binary and Source release?

i have been seeing the words binary and source release in many websites download sections. 3 Answers ...
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Parsing a string into a boolean value in PHP

Today I was playing with PHP, and I discovered that the string values "true" and "false" are not correctly parsed to boolean in a condition, for example considering the following function: ...
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Sign APK without putting keystore info in build.gradle

... The nice thing about Groovy is that you can freely mix Java code, and it's pretty easy to read in a key/value file using java.util.Properties. Perhaps there's an even easier way using idiomatic Groovy, but Java is still pretty simple. Create a keystore.properties file (in this example, in the ...
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What exactly can cause an “HIERARCHY_REQUEST_ERR: DOM Exception 3”-Error?

How exactly does it relate to jQuery? I know the library uses native javascript functions internally, but what exactly is it trying to do whenever such a problem appears? ...
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How to print a date in a regular format?

... representation that is used by print can be get using the str() function. It is most of the time the most common human readable format and is used to ease display. So str(datetime.datetime(2008, 11, 22, 19, 53, 42)) gives you '2008-11-22 19:53:42'. The alternative representation that is used to re...