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How is the default submit button on an HTML form determined?

...s considered active; this doesn't really fall under the remit of your question since here the submit button is unambiguous but I thought I'd include it for people who read the first part and wonder how to make a submit button successful via JS form submission. Of course, the form's onsubmit handler...
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What are Runtime.getRuntime().totalMemory() and freeMemory()?

...t of memory required to hold an object of any given type may be implementation-dependent. maxMemory() Returns the maximum amount of memory that the Java virtual machine will attempt to use. If there is no inherent limit then the value Long.MAX_VALUE will be returned. freeMemory() Returns the a...
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Difference between 'python setup.py install' and 'pip install'

...r you, with a minimum amount of fuss. However, using pip offers some additional advantages that make it much nicer to use. pip will automatically download all dependencies for a package for you. In contrast, if you use setup.py, you often have to manually search out and download dependencies, whi...
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Comparing object properties in c# [closed]

...gnoreList = new List<string>(ignore); foreach (System.Reflection.PropertyInfo pi in type.GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance)) { if (!ignoreList.Contains(pi.Name)) { object selfValue =...
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How to find out the number of CPUs using python

... If you have python with a version >= 2.6 you can simply use import multiprocessing multiprocessing.cpu_count() http://docs.python.org/library/multiprocessing.html#multiprocessing.cpu_count ...
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What is “lifting” in Haskell?

...an short-circuit this by writing the unwrap-and-wrap code once. This function is traditionally called a "lift" because it looks like this: liftFoo2 :: (a -> b -> c) -> Foo a -> Foo b -> Foo c In other words you have a function which takes a two-argument function (such as the (+) o...
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Threads vs Processes in Linux

...y problems (such as locking) associated with threads. However, I am suspicious, because it seems like threads could give a pretty big performance gain in some situations. ...
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How do I choose between Semaphore and SemaphoreSlim?

Their public interfaces appear similar. The documentation states that the SemaphoreSlim is a lightweight alternative and doesn't use Windows Kernel semaphores. This resource states that the SemaphoreSlim is much faster. In what situations does the SemaphoreSlim make more sense over the Semaph...
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How do I execute a command and get the output of the command within C++ using POSIX?

...run from within a C++ program. I have looked at using the system() function, but that will just execute a command. Here's an example of what I'm looking for: ...
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How to pass a class type as a function parameter

I have a generic function that calls a web service and serialize the JSON response back to an object. 6 Answers ...