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how can I see what ports mongo is listening on from mongo shell?
If I have a mongo instance running, how can I check what port numbers it is listening on from the shell? I thought that db.serverStatus() would do it but I don't see it. I see this
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What is the “realm” in basic authentication
I'm setting up basic authentication on a php site and found this page on the php manual showing the set up. What does "realm" mean here in the header?
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How do you turn off version control in android studio?
... android studio, everything worked fine, the problem now is though, that I can't seem to turn off, or get out of version control to use the IDE normally again.
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Difference between \A \z and ^ $ in Ruby regular expressions
...forehand, since there's pretty much no legitimate reason for one. Then you can safely use EITHER \A \z or ^ $.
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What does && mean in void *p = &&abc;
I came across a piece of code void *p = &&abc; . What is the significance of && here?
I know about rvalue references but I think && used in this context is different. What does && indicate in void *p = &&abc; ?
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How can I access a JavaScript object which has spaces in the object's key?
...scripts "bracket notation":
myTextOptions[ 'character names' ].kid;
You can use that notation either way, reading & writting.
For more information read out here:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects
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Why Collections.sort uses merge sort instead of quicksort?
...stable (as parsifal noted).
It doesn't guarantee n log n performance; it can degrade to quadratic performance on pathological inputs.
Stability is a non-issue for primitive types, as there is no notion of
identity as distinct from (value) equality. And the possibility of
quadratic beh...
Rails “validates_uniqueness_of” Case Sensitivity
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validates_uniqueness_of :name, :case_sensitive => false does the trick, but you should keep in mind that validates_uniqueness_of does not guarantee uniqueness if you have multiple servers/server processes (e.g. running Phusion Passenger, multiple Mongrel...
Difference between Document-based and Key/Value-based databases?
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The main differences are the data model and the querying capabilities.
Key-value stores
The first type is very simple and probably doesn't need any further explanation.
Data model: more than key-value stores
Although there is some debate on the correct name for databases such a...
What does Html.HiddenFor do?
...del that you need to persist on the page and have passed back when another call is made but shouldn't be seen by the user.
Consider the following ViewModel class:
public class ViewModel
{
public string Value { get; set; }
public int Id { get; set; }
}
Now you want the edit page to store...