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What is recursion and when should I use it?
...4 * 3 * 2 * 1. This function solves this in C# for positive integers (not tested - there may be a bug).
public int Factorial(int n)
{
if (n <= 1)
return 1;
return n * Factorial(n - 1);
}
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Android: How can I pass parameters to AsyncTask's onPreExecute()?
...erface MyGenericMethod {
int execute(String param);
}
protected class testtask extends AsyncTask<MyGenericMethod, Void, Void>
{
public String mParam; // member variable to parameterize the function
@Override
protected Void doInBackground(MyGenericMeth...
How to paste yanked text into the Vim command line
...
Yup, works in Linux too. Tested under GNOME in both Vim and GVim.
– Teoulas
Oct 27 '11 at 9:26
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Solving “Who owns the Zebra” programmatically?
... @BenBurns: no reason. The answer was written in 2008. If you've tested it and it produces the same result then you could update the installation instructions and the corresponding links to the docs (it doesn't change the essential aspects of the answer -- you are free to edit it).
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How to handle many-to-many relationships in a RESTful API?
...t match some natural key (e.g. Name). This is custom code that needs to be tested, costs more money and time etc etc
To avoid needing custom recovery code, we can implement PUT instead of POST.
From the RFC:
the intent of PUT is idempotent
For an operation to be idempotent, it needs to exclu...
Xcode Project vs. Xcode Workspace - Differences
...tly different versions of an app (iPad/iPhone, different brandings,…) or test cases that naturally need to access the same source files as the app. All these related targets can be grouped in a project. While the project contains the files from all its targets, each target picks its own subset of ...
How to create a unique index on a NULL column?
...ot, if using the PK gives the index something more to work with? Going to test this weekend on a big table and see.
– David Storfer
Oct 7 '11 at 20:31
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What's the role of GetHashCode in the IEqualityComparer in .NET?
...tes the hashcode and jumps to that location. The Equals method is a better test of equality, but cannot be used to map an object into an address space.
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What is the difference between a URI, a URL and a URN?
...URN?
The definition of URN is now looser than what I stated above. The latest RFC on URIs says that any URI can now be a URN (regardless of whether it starts with urn:) as long as it has "the properties of a name." That is: It is globally unique and persistent even when the resource ceases to exi...
What's wrong with nullable columns in composite primary keys?
...atch is that a constraint is not considered violated if the outcome of the test is UNKNOWN. This often makes it SEEM as if the comparison yields false, but it really doesn't.
– Erwin Smout
Feb 25 '15 at 14:06
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