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What's wrong with nullable columns in composite primary keys?
...reign keys is not clean relational database design.
If there are two entities A and B where A can optionally be related to B, the clean solution is to create a resolution table (let's say AB). That table would link A with B: If there is a relationship then it would contain a record, if there isn't ...
How to make Twitter Bootstrap menu dropdown on hover rather than click
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To get the menu to automatically drop on hover then this can achieved using basic CSS. You need to work out the selector to the hidden menu option and then set it to display as block when the appropriate li tag is hovered over. Taking the example from the twitter bootstrap page, the selec...
How can I export tables to Excel from a webpage [closed]
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Far and away, the cleanest, easiest export from tables to Excel is Jquery DataTables Table Tools plugin. You get a grid that sorts, filters, orders, and pages your data, and with just a few extra lines of code and two small files included, you get export ...
Is there a difference between copy initialization and direct initialization?
...9). The second copy initializes: Value-initializes a temporary and then copies that value into c2 (Read 5.2.3/2 and 8.6/14). This of course will require a non-explicit copy constructor (Read 8.6/14 and 12.3.1/3 and 13.3.1.3/1 ). The third creates a function declaration for a function c3 that returns...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...of tracking file contents, even as those contents move between files, and views files as first-level objects, but does not track directories. Another issue with git is that has many operations (such as rebase) which make it easy to modify history (in a sense -- the content referred to by a hash will...
What is the difference between customErrors and httpErrors?
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Disclaimer: This is from my experience and not proven fact.
Both are used to define error handling for a website, but different software refers to different config elements.
customErrors are a legacy (backwards compatable) element, used by Visual Studio Deve...
Does Java casting introduce overhead? Why?
...ing performance of not) with a grain of salt.
– Pacerier
Aug 17 '14 at 12:18
will it be the same case, if i don't assi...
What are the differences between a pointer variable and a reference variable in C++?
I know references are syntactic sugar, so code is easier to read and write.
41 Answers
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Checkout subdirectories in Git?
Is it possible to check out subdirectories of a repository in Git?
9 Answers
9
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Call An Asynchronous Javascript Function Synchronously
...ify doSomething(). I don't know if that's in the cards.
If it can be modified, then I don't know why you wouldn't just pass a callback to doSomething() to be called from the other callback, but I better stop before I get into trouble. ;)
Oh, what the heck. You gave an example that suggests it ca...