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Change the image source on rollover using jQuery

...show/hide the rollover image when the onmousemove/onmouseout event happen. All my image names follow the same pattern, like this: ...
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Decorators with parameters?

...tion that will take a function and return another function. So it should really return a normal decorator. A bit confusing, right? What I mean is: def decorator_factory(argument): def decorator(function): def wrapper(*args, **kwargs): funny_stuff() something_with...
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Most efficient way to determine if a Lua table is empty (contains no entries)?

...olution though, and I honestly can't assume that my solution is faster overall. share | improve this answer | follow | ...
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Android SDK manager won't open

So I installed the android sdk for Windows: 29 Answers 29 ...
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No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

... On your Eclipse IDE, go into Window > Preferences > Java > Installed JREs > and check your installed JREs. You should have an entry with a JDK there. Select the Execution Env as show below. Click OK Then Right-Click on your Project -> Maven -> Update Project Additionally, yo...
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Create unique constraint with null columns

...or may not be useful. In extreme situations it might even help to maintain all three indexes (the two partial ones and a total on top). Aside: I advise not to use mixed case identifiers in PostgreSQL. share | ...
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What can you do in MSIL that you cannot do in C# or VB.NET? [closed]

All code written in .NET languages compiles to MSIL, but are there specific tasks / operations that you can do only using MSIL directly? ...
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Notification click: activity already open

...current task, then instead of launching a new instance of that activity, all of the other activities on top of it will be closed and this Intent will be delivered to the (now on top) old activity as a new Intent. For example, consider a task consisting of the activities: A, B, C, D. If...
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How can I mock requests and the response?

...thons mock package to mock Pythons requests module. What are the basic calls to get me working in below scenario? 9 Answ...
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Ways to implement data versioning in MongoDB

... approach would be to store diffs. Because the display of these diffs is really a special action, I would put the diffs in a different "history" collection. I would use the different collection to save memory space. You generally don't want a full history for a simple query. So by keeping the histo...