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mongodb/mongoose findMany - find all documents with IDs listed in array
...e same.
model.find({
'_id': { $in: [
mongoose.Types.ObjectId('4ed3ede8844f0f351100000c'),
mongoose.Types.ObjectId('4ed3f117a844e0471100000d'),
mongoose.Types.ObjectId('4ed3f18132f50c491100000e')
]}
}, function(err, docs){
console.log(docs);
});
This method wi...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
All the examples of strong parameters in Rails 4 docs use
2 Answers
2
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Easiest way to rename a model using Django/South?
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4 Answers
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How to add an extra column to a NumPy array
...)
b = np.zeros((N,N+1))
b[:,:-1] = a
And timings:
In [23]: N = 10
In [24]: a = np.random.rand(N,N)
In [25]: %timeit b = np.hstack((a,np.zeros((a.shape[0],1))))
10000 loops, best of 3: 19.6 us per loop
In [27]: %timeit b = np.zeros((a.shape[0],a.shape[1]+1)); b[:,:-1] = a
100000 loops, best of ...
What is the difference between javac and the Eclipse compiler?
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4 Answers
4
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Different results with Java's digest versus external utilities
...bit applications that have the system path hard coded and is running in a 64-bit Windows? How can they find the new SysWOW64 folder without changes in the program code, you might think. The answer is that the emulator redirects calls to System32 folder to the SysWOW64 folder transparently so even if...
How do I show an open file in eclipse Package Explorer?
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415
There is a button in the Package Explorer view that looks like two yellow arrows pointed at le...
Is there a CSS selector by class prefix?
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4 Answers
4
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Insert/Update Many to Many Entity Framework . How do I do it?
I'm using EF4 and new to it. I have a many to many in my project and cannot seem to work out how to insert or update. I have build a small project just to see how it should be coded.
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Allow CORS REST request to a Express/Node.js application on Heroku
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