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mongodb count num of distinct values per field/key
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Here is example of using aggregation API. To complicate the case we're grouping by case-insensitive words from array property of the document.
db.articles.aggregate([
{
$match: {
keywords: { $not: {$size: 0} }
}
},
{ $unw...
IEnumerable vs List - What to Use? How do they work?
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IList is not read-only - docs.microsoft.com/en-us/dotnet/api/… IEnumerable is read-only because it lacks any methods to add or remove anything once it is constructed, it is one of the base interfaces which IList extends (see link)
– CAD bloke
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Accept server's self-signed ssl certificate in Java client
...et or in obscurity is not a solution at all. This code is public, the Java API is public, it's better to talk about it than to ignore it. But I can live with you not agreeing.
– Pascal Thivent
May 25 '10 at 0:10
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Change a column type from Date to DateTime during ROR migration
...uld throw a ActiveRecord::IrreversibleMigration exception. Only methods in api.rubyonrails.org/classes/ActiveRecord/Migration/… should be used in the change method.
– davekaro
Jan 9 '13 at 16:24
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Best practice for partial updates in a RESTful service
...ty useful and clean when you have a reduced set of statuses. It makes your API more expressive without forcing the existing operations for your customer resource.
Example:
POST /customer/active <-- Providing entity in the body a new customer
{
... // attributes here except status
}
The PO...
Why does this code using random strings print “hello world”?
... the javadoc says that the seed is 48 bits. docs.oracle.com/javase/7/docs/api/java/util/Random.html. And besides, the actual seeds are 32 bit values.
– Stephen C
Mar 3 '13 at 4:58
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How can I correctly prefix a word with “a” and “an”?
...ay is to ask Google for the two possibilities (using the one of the search APIs) and use the most popular:
http://www.google.co.uk/search?q=%22a+europe%22 - 841,000 hits
http://www.google.co.uk/search?q=%22an+europe%22 - 25,000 hits
Or:
http://www.google.co.uk/search?q=%22a+honest%22 - 797,000...
Binary Data in JSON String. Something better than Base64
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By the way, the Google Drive API is doing it in this way: developers.google.com/drive/v2/reference/files/update#examples
– Mathias Conradt
Jul 30 '15 at 13:51
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Async/Await vs Threads
... C# aspect what's the best approach to achieve Async-Callbacks on external APIs?
– bonCodigo
May 19 '14 at 5:13
5
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Inject service in app.config
...obably only useful if the service factory returned a promise instead of an API. So the way you're currently doing it is probably the best way.
– Josh David Miller
Aug 5 '13 at 21:20
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