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C# 'is' operator performance
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Using is can hurt performance if, once you check the type, you cast to that type. is actually casts the object to the type you are checking so any subsequent casting is redundant.
If you are going to cast anyway, here is a better...
What is memory fragmentation?
...early double that much free.
On systems with virtual memory, fragmentation is less of a problem than you might think, because large allocations only need to be contiguous in virtual address space, not in physical address space. So in my example, if I had virtual memory with a page size of 2 bytes th...
Best Practice: Access form elements by HTML id or name attribute?
...standards-compliant and least problematic way to access your input element is via:
document.getElementById("myform").elements["foo"]
using .elements["foo"] instead of just .foo is preferable because the latter might return a property of the form named "foo" rather than a HTML element!
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When is a function too long? [closed]
...'s grabbing data, then doing something with that data, then writing it to disk then I'd split out the grabbing and writing into separate methods so my "main" method just contains the "doing something".
That "doing something" could still be quite a few lines though, so I'm not sure a number of lines...
Move assignment operator and `if (this != &rhs)`
...perator of a class, you usually need to check if the object being assigned is the invoking object so you don't screw things up:
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Can a program depend on a library during compilation but not runtime?
...to differentiate between the two, but I just don't see the need to make a distinction between compile-time and runtime dependencies .
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Why use softmax as opposed to standard normalization?
In the output layer of a neural network, it is typical to use the softmax function to approximate a probability distribution:
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Why is there “data” and “newtype” in Haskell? [duplicate]
It seems that a newtype definition is just a data definition that obeys some restrictions (e.g., only one constructor), and that due to these restrictions the runtime system can handle newtype s more efficiently. And the handling of pattern matching for undefined values is slightly different.
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What is the proper way to re-attach detached objects in Hibernate?
...a hibernate session, although an object of the same identity MAY already exist in the session, which will cause errors.
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What are the effects of exceptions on performance in Java?
Question: Is exception handling in Java actually slow?
18 Answers
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