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Swapping two variable value without using third variable
...an interview question". I just gave one other possible answer. Second, OK, my apologies for implying that pointers are integers. I updated the answer to be hopefully more explicit and correct. Please correct me if I'm still wrong (or update the answer yourself). Third, I deleted the part about the a...
Clone() vs Copy constructor- which is recommended in java [duplicate]
...icants I'm not using clone() either, that's why I suggested beanutils. But my point is that clone() can be used, though "judiciously". In simple cases it works pretty well. So let's ammend the car metaphor - it's like saying that Russian cars work. Well, they do, but not quite well.
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What's the difference between the data structure Tree and Graph?
...y DAG implementation, which are generally not recursive, can also be used.
My preferred Tree implementation is a centralized map representation and is non recursive.
Graphs are generally searched breadth first or depth first. The same applies to Tree.
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How to make exe files from a node.js app?
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As you mentioned, this doesn't solve my issue in an ideal way. But +1 for the interesting reads
– Aishwar
Nov 17 '11 at 23:31
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How to dismiss a Twitter Bootstrap popover by clicking outside?
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Perfect for me. Other answers had side-effects when my "outside click" happened to open a new popover.
– Facio Ratio
Oct 27 '16 at 21:17
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Efficient way to return a std::vector in c++
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My understanding about the return value (by value) is: instead of 'been moved', the return value in the callee is created on the caller's stack, so all operations in the callee are in-place, there is nothing to move in RVO. I...
Change case of a file on Windows?
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In my opinion one simple way is missing. You can do this for a single file, a specific directory or even the whole repository. Just rename your files in any way you like before and than execute these commands:
git rm --cached &l...
Is it better to return null or empty collection?
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Empty collection. Always.
This sucks:
if(myInstance.CollectionProperty != null)
{
foreach(var item in myInstance.CollectionProperty)
/* arrgh */
}
It is considered a best practice to NEVER return null when returning a collection or enumerable. ALWAYS return...
How to create directories recursively in ruby?
...ile as /a/b/c/d.txt, but I do not know if any of these directories exist". My solution allows to use the existing file path ('/a/b/c/d.txt'), and, without separate parsing, create all the folders.
– Vadym Tyemirov
Oct 9 '19 at 4:47
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How to give Jenkins more heap space when it´s started as a service under Windows?
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my question is : if the builds is running out of memory , why we should set the java options in the master ?
– yarin
Jan 24 '18 at 8:26
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