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Rails 3 check if attribute changed
Need to check if a block of attributes has changed before update in Rails 3.
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@UniqueConstraint and @Column(unique = true) in hibernate annotation
What is difference between @UniqueConstraint and @Column(unique = true) ?
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Populating spinner directly in the layout xml
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How many and which are the uses of “const” in C++?
As a novice C++ programmer there are some constructs that look still very obscure to me, one of these is const . You can use it in so many places and with so many different effects that is nearly impossible for a beginner to come out alive. Will some C++ guru explain once forever the various uses a...
Optional query string parameters in ASP.NET Web API
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How to use JavaScript variables in jQuery selectors?
How do I use JavaScript variables as a parameter in a jQuery selector?
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Jquery selector input[type=text]')
I wrote a code that basically selects all input type=text element like this:
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What is the “__v” field in Mongoose
I'm using Mongoose version 3 with MongoDB version 2.2. I've noticed a __v field has started appearing in my MongoDB documents. Is it something to do with versioning? How is it used?
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Returning first x items from array
I want to return first 5 items from array. How can I do this?
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