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How to remove a field from params[:something]
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Rails 4/5 - edited answer
(see comments)
Since this question was written newer versions of Rai...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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To quote from the data.table FAQ 1.11 What is the difference between X[Y] and merge(X, Y)?
X[Y] is a join, looking up X's rows using Y (or Y's key if it has one) as an index.
Y[X] is a join, looking up Y's rows using X (or X's key if it has one)
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Why should I use Deque over Stack?
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For one thing, it's more sensible in terms of inheritance. The fact that Stack extends Vector ...
Accessing an array out of bounds gives no error, why?
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17 Answers
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How can I undo git reset --hard HEAD~1?
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18 Answers
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Chrome: timeouts/interval suspended in background tabs?
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I recently asked about this and it is behaviour by design. When a tab is inactive, only at a max...
Static variables in member functions
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Since class A is a non-template class and A::foo() is a non-template function. There will be o...
What is the correct way of using C++11's range-based for?
What is the correct way of using C++11's range-based for ?
4 Answers
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How do I sort an array of hashes by a value in the hash?
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216
Ruby's sort doesn't sort in-place. (Do you have a Python background, perhaps?)
Ruby has sort! f...