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What is the difference between the | and || or operators?
I have always used || (two pipes) in OR expressions, both in C# and PHP. Occasionally I see a single pipe used: | . What is the difference between those two usages? Are there any caveats when using one over the other or are they interchangeable?
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How to call a method with a separate thread in Java?
let's say I have a method doWork() . How do I call it from a separate thread (not the main thread).
7 Answers
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Python Empty Generator Function
In python, one can easily define an iterator function, by putting the yield keyword in the function's body, such as:
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AtomicInteger lazySet vs. set
What is the difference between the lazySet and set methods of AtomicInteger ? The documentation doesn't have much to say about lazySet :
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How to merge two arrays in JavaScript and de-duplicate items
I have two JavaScript arrays:
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What's the difference between a 302 and a 307 redirect?
What's the difference between a 302 FOUND and a 307 TEMPORARY REDIRECT HTTP response?
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Design patterns to avoid [closed]
A lot of people seem to agree, that the Singleton pattern has a number of drawbacks and some even suggest avoiding the pattern entirely. There's an excellent discussion here . Please direct any comments about the Singleton pattern to that question.
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How to design a multi-user ajax web application to be concurrently safe
I have a web page that shows a large amount of data from the server. The communication is done via ajax.
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Short description of the scoping rules?
What exactly are the Python scoping rules?
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Why Qt is misusing model/view terminology?
I think that the terminology used in Qt with model/view controls is flawed. On their explanation page they state, that they simplified the MVC to MV by merging View and Controller and they are giving the following picture:
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