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Is there a Java reflection utility to do a deep comparison of two objects?
... of clone() operations inside a large project and I'm wondering if there is an existing class somewhere that is capable of taking two objects of the same type, doing a deep comparison, and saying if they're identical or not?
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How can I tell if a DOM element is visible in the current viewport?
Is there an efficient way to tell if a DOM element (in an HTML document) is currently visible (appears in the viewport )?
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Scala type programming resources
According to this question , Scala's type system is Turing complete . What resources are available that enable a newcomer to take advantage of the power of type-level programming?
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...0 for business rules. Don't return 2xx if the order was not accepted. HTTP is an application protocol, never forget that. If you return 2xx the client can assume the order was accepted, regardless of any information you send in the body.
From RESTful Web Services Cookbook:
One common mistake th...
How can I propagate exceptions between threads?
We have a function which a single thread calls into (we name this the main thread). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
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What is the exact problem with multiple inheritance?
... next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
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How to create a MySQL hierarchical recursive query
I have a MySQL table which is as follows:
15 Answers
15
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Under what circumstances are linked lists useful?
Most times I see people try to use linked lists, it seems to me like a poor (or very poor) choice. Perhaps it would be useful to explore the circumstances under which a linked list is or is not a good choice of data structure.
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What's the Hi/Lo algorithm?
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The basic idea is that you have two numbers to make up a primary key- a "high" number and a "low" number. A client can basically increment the "high" sequence, knowing that it can then safely generate keys from the entire range of the previ...
What is the correct JSON content type?
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For JSON text:
application/json
The MIME media type for JSON text is application/json. The default encoding is UTF-8. (Source: RFC 4627).
For JSONP (runnable JavaScript) with callback:
application/javascript
Here are some blog posts that were mentioned in the relevant comments:
Why you sh...