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Use CSS3 transitions with gradient backgrounds

I'm trying to transition on hover with css over a thumbnail so that on hover, the background gradient fades in. The transition isn't working, but if I simply change it to an rgba() value, it works fine. Are gradients not supported? I tried using an image too, it won't transition the image either. ...
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What should every developer know about databases? [closed]

...not most of us developers either regularly work with databases or may have to work with one someday. And considering the amount of misuse and abuse in the wild, and the volume of database-related questions that come up every day, it's fair to say that there are certain concepts that developers shou...
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When should we use mutex and when should we use semaphore

... Here is how I remember when to use what - Semaphore: Use a semaphore when you (thread) want to sleep till some other thread tells you to wake up. Semaphore 'down' happens in one thread (producer) and semaphore 'up' (for same semaphore) happens in anot...
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What are the benefits of dependency injection containers?

... For myself one of the main reasons to use an IoC (and make use of external configuration) is around the two areas of: Testing Production maintenance Testing If you split your testing into 3 scenarios (which is fairly normal in large scale development): ...
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Useless use of cat?

... I was not aware of the award until today when some rookie tried to pin the UUOC on me for one of my answers. It was a cat file.txt | grep foo | cut ... | cut .... I gave him a piece of my mind, and only after doing so visited the link he gave me referring to t...
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Programmatically open Maps app in iOS 6

Previous to iOS 6, opening a URL like this would open the (Google) Maps app: 12 Answers ...
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How to recover stashed uncommitted changes

...anges which were very important among those stashed ones. Is there any way to get back those changes? 6 Answers ...
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What is a callback function?

... is a function that is "called at the back" of the function it is passed into. Maybe a better name would be a "call after" function. This construct is very useful for asynchronous behaviour where we want an activity to take place whenever a previous event completes. Pseudocode: // A function wh...
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Reintegrate can only be used if revisions X through Y were previously merged from to reintegra

Been using SVN branches with Tortoise 1.6. I've been periodically merging the trunk into the branch to keep it up to date. ...
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Image comparison - fast algorithm

I'm looking to create a base table of images and then compare any new images against that to determine if the new image is an exact (or close) duplicate of the base. ...