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How to remove a field from params[:something]
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214
Rails 4/5 - edited answer
(see comments)
Since this question was written newer versions of Rai...
Accessing an array out of bounds gives no error, why?
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17 Answers
17
Active
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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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GB English, or US English?
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edited Mar 18 '16 at 10:36
answered Oct 1 '08 at 14:15
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Chrome: timeouts/interval suspended in background tabs?
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91
I recently asked about this and it is behaviour by design. When a tab is inactive, only at a max...
Correct way to find max in an Array in Swift
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12 Answers
12
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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...
Find and restore a deleted file in a Git repository
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3212
Find the last commit that affected the given path. As the file isn't in the HEAD commit, this c...
Static variables in member functions
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169
Since class A is a non-template class and A::foo() is a non-template function. There will be o...
dispatch_after - GCD in Swift?
...).
Example usage:
let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(1 * Double(NSEC_PER_SEC)))
dispatch_after(delayTime, dispatch_get_main_queue()) {
print("test")
}
EDIT:
I recommend using @matt's really nice delay function.
EDIT 2:
In Swift 3, there will be new wrappers for GCD. Se...