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How do I check in JavaScript if a value exists at a certain array index?

... Conceptually, arrays in JavaScript contain array.length elements, starting with array[0] up until array[array.length - 1]. An array element with index i is defined to be part of the array if i is between 0 and array.length - 1 inclu...
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How to take emulator screenshots using Eclipse?

I need to take screenshots of an android application running on an emulator in Eclipse Galileo. 6 Answers ...
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How to say “should_receive” more times in RSpec

... This is outdated. Please check Uri's answer below for 2 times: Project.should_receive(:find).twice.with(@project).and_return(@project) for exactly n times: Project.should_receive(:find).exactly(n).times.with(@project).and_return(@pro...
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How to specify a port number in SQL Server connection string?

I use the following connection string in SQL Server Management Studio. It failed to connect: 4 Answers ...
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CSS display: table min-height not working

Does anyone know I can make min-height work with the latest browsers? I am using CSS tables and it seems to ignore min-height. ...
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Use the new keyword if hiding was intended” warning

... Your class has a base class, and this base class also has a property (which is not virtual or abstract) called Events which is being overridden by your class. If you intend to override it put the "new" keyword after the public ...
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How do I modify a MySQL column to allow NULL?

... You want the following: ALTER TABLE mytable MODIFY mycolumn VARCHAR(255); Columns are nullable by default. As long as the column is not declared UNIQUE or NOT NULL, there shouldn't be any problems. ...
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How do I convert an interval into a number of hours with postgres?

... answered Jun 4 '09 at 19:23 Magnus HaganderMagnus Hagander 19.6k33 gold badges4848 silver badges4141 bronze badges ...
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jQuery empty() vs remove()

What's the difference between empty() and remove() methods in jQuery , and when we call any of these methods, the objects being created will be destroyed and memory released? ...
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How to redirect from OnActionExecuting in Base Controller?

...ing, as well as calling a new method inside of the Base Controller that returns an ActionResult and have it return RedirectToAction()... neither of these work. ...