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Delete a key from a MongoDB document using Mongoose
...e({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.save(callback);
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What is the advantage to using bloom filters?
...re. If a 1% false
positive rate seems too high, each
time we add about 4.8 bits per element
we decrease it by ten times.
Pretty clear to me.
A bloom filter doesn't store the elements themselves, this is the crucial point. You don't use a bloom filter to test if an element is present, you us...
What is the default text size on Android?
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42
This will return default size of text on button in pixels.
Kotlin
val size = Button(this).t...
How to retrieve all keys (or values) from a std::map and put them into a vector?
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edited Aug 21 at 16:47
Srijan Chaudhary
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Best practice to call ConfigureAwait for all server-side code
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How do I unit test web api action method when it returns IHttpActionResult?
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answered Nov 12 '13 at 18:46
Kiran ChallaKiran Challa
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RESTfully design /login or /register resources?
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+150
One thin...
How do I make a batch file terminate upon encountering an error?
...ve result.
– devstuff
Sep 16 '10 at 4:37
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Careful: the enabledelayedexpansion is CRITICAL and al...
Advanced JavaScript: Why is this function wrapped in parentheses? [duplicate]
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Does MySQL index foreign key columns automatically?
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Nae
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answered Nov 20 '08 at 4:33
Grant LimbergGrant Lim...
