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How do I update/upsert a document in Mongoose?
...ing are not applied: defaults, setters, validators, middleware" mongoosejs.com/docs/api.html#model_Model.findOneAndUpdate
– kellen
Nov 6 '14 at 16:56
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How does MongoDB sort records when no sort order is specified?
... data files that can vary in natural order, but will have the same data outcome when oplog updates are applied.
What if an index is used?
If an index is used, documents will be returned in the order they are found (which does necessarily match insertion order or I/O order). If more than one index...
How do you overcome the HTML form nesting limitation?
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179
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Setting HttpContext.Current.Session in a unit test
...);
request.Setup(req => req.Url).Returns(new Uri("http://www.google.com"));
request.Setup(req => req.RequestContext).Returns(requestContext.Object);
requestContext.Setup(x => x.RouteData).Returns(new RouteData());
request.SetupGet(req => req.Headers).Returns(new NameValue...
What is the difference between Caching and Memoization?
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Using the Swift if let with logical AND operator &&
...success!")
}
For those now using Swift 3, "where" has been replaced by a comma. The equivalent would therefore be:
if let w = width as? Int, w < 500
{
println("success!")
}
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improv...
What is mattr_accessor in a Rails module?
...s the module-level variables like so:
>> Config.hostname = "example.com"
>> Config.admin_email = "admin@example.com"
>> Config.hostname # => "example.com"
>> Config.admin_email # => "admin@example.com"
...
How to render a PDF file in Android
...er.close();
For more information see the sample app.
For older APIs I recommend Android PdfViewer library, it is very fast and easy to use, licensed under Apache License 2.0:
pdfView.fromAsset(String)
.pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default
.enableSwipe(true)
.swipeH...
Scaling Node.js
... 127.0.0.1:8003;
}
server {
listen 80;
server_name www.domain.com;
location / {
proxy_pass http://myproject;
}
}
}
Redis
20 queries per second
No sweat for node.js. You should use redis as your datastore because it is insane fast :). There is even a c library for...