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Dictionary vs Object - which is more efficient and why?
... mentioned other factors such as memory allocations, constructor call time etc.
– Vinay Sajip
Aug 26 '09 at 19:34
Is t...
What's the false operator in C# good for?
... allow for nullable boolean types prior to the Nullable (i.e. int?, bool?, etc.) type being introducted into the language in C#2. Thus you would store an internal value indicating whether the value is true or false or null, i.e. in your example >0 for true, <0 for false and ==0 for null, and t...
Disable hover effects on mobile browsers
... the screen to light up with :hover effects (different background color, etc.) With a tablet, there's no mouse, so I don't want any hover effects.
...
How to exclude a directory in find . command
...since -deletewill first delete the leaves, then the parents of the leaves, etc... But for specifying -prune to make sense, find needs to hit a directory and stop descending it, which clearly makes no sense with -depth or -delete on.
Performance
I set up a simple test of the three top upvoted ans...
Is there a performance difference between i++ and ++i in C?
... different than C, since it has operator overloading and copy constructors etc.
– Lundin
Aug 31 '15 at 10:36
3
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How does collections.defaultdict work?
...interesting when the values in a dictionary are collections (lists, dicts, etc.) In this case, the value (an empty list or dict) must be initialized the first time a given key is used. While this is relatively easy to do manually, the defaultdict type automates and simplifies these kinds of operatio...
Simple logical operators in Bash
...nds are executed in a separate subprocess, so any redirection, assignment, etc. performed inside the parentheses has no effect outside the parentheses.
With a leading dollar sign, $(…) is a command substitution: there is a command inside the parentheses, and the output from the command is used a...
Difference between Lookup() and Dictionary(Of list())
...alue>, which means that it's efficient to use with Count(), ElementAt() etc.
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bool operator ++ and --
...R TRUE is TRUE, x OR FALSE is x, x AND FALSE is FALSE and x AND TRUE is x, etc using the same operators for boolean and bit-wise operations (since VB assumes twos-complement so -1 is all 1 bits). However, this can cause some strange bugs in VB if the coder doesn't catch that 2 (true) AND 4 (true) re...
How do I programmatically shut down an instance of ExpressJS for testing?
... (like reading config options from a file, loading state from a datastore, etc) that it would be nice to test in the same framework I test everything else. I'd also like to have tests that, for instance, shutdown the server, bring it back up again, and make sure it didn't lose state in the process. ...