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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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What is this 'Lambda' everyone keeps speaking of?

... 'Lambda' everyone keeps speaking of? A lot of people seem to love it, but all I can gather from it is it is just a way of cramming lots of lines of code into a single expression. ...
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In C++, is it still bad practice to return a vector from a function?

...o says nothing about v-tables, so you can't be sure that virtual function calls are efficient either. Essentially, you need to put some faith in the compiler at times. – Peter Alexander Jun 28 '10 at 23:04 ...
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Make a div fill up the remaining width

...div> <div id="middle-div"> middle div<br />bit taller </div> </div> divs will naturally take up 100% width of their container, there is no need to explicitly set this width. By adding a left/right margin the same as the two side divs, it's own contents is...
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F# development and unit testing?

...I accept today that there are certain things C# allows me to express (like uint) that aren't CLS compliant, and so I refrain from using them. share | improve this answer | fo...
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Java regex email

First of all, I know that using regex for email is not recommended but I gotta test this out. 20 Answers ...
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ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides

... Scott Dorman is correct. Calling the built-in Add method will trigger something like 3 events per add (a NotifyPropertyChange for item count, NotifyPropertyChange for item indexing[] and an NotifyCollectionChanged event for the item added). To get the...
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How to optimize for-comprehensions and loops in Scala?

...s Java. I'm revisiting some Project Euler problems in Scala that I originally tackled in Java. Specifically Problem 5: "What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?" ...
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std::unique_ptr with an incomplete type won't compile

... I find your first solution (adding the foo destructor) allows the class declaration itself to compile, but declaring an object of that type anywhere results in the original error ("invalid application of 'sizeof'..."). – Jeff Trull Sep 30 '1...
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C++0x has no semaphores? How to synchronize threads?

...ck Overflow regarding the use of semaphores. I use them (posix semaphores) all the time to let a thread wait for some event in another thread: ...