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Java Set retain order?
... A method is returning a Set to me and supposedly the data is ordered but iterating over the Set, the data is unordered. Is there a better way to manage this? Does the method need to be changed to return something other than a Set?
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How to find the statistical mode?
...internal storage mode of the object, not the value that occurs the most in its argument. But is there is a standard library function that implements the statistical mode for a vector (or list)?
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How to stop app that node.js express 'npm start'
You build node.js app with express v4.x then start your app by npm start . My question is how to stop the app? Is there npm stop ?
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Convert Json Array to normal Java list
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edited May 14 '12 at 4:43
Tushar
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answe...
How to specify a min but no max decimal using the range data annotation attribute?
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edited May 19 at 16:29
carlin.scott
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Order data frame rows according to vector with specific order
...ame),]
name value
2 b TRUE
3 c FALSE
1 a TRUE
4 d FALSE
It will work as long as your target contains exactly the same elements as df$name, and neither contain duplicate values.
From ?match:
match returns a vector of the positions of (first) matches of its first argument
in its ...
How to check if array is empty or does not exist? [duplicate]
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You want to do the check for undefined first. If you do it the other way round, it will generate an error if the array is undefined.
if (array === undefined || array.length == 0) {
// array empty or does not exist
}
Update
This answer is getting a fair amount of attention, so...
C# vs Java generics [duplicate]
...s good as the C# implementation. In that the syntax looks similar, what is it that is substandard about the Java implementation, or is it a religious point of view?
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“unrecognized import path” with go get
I'm trying to install a web.go , but running go get github.com/hoisie/web returns
9 Answers
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Can you use if/else conditions in CSS?
I would like to use conditions in my CSS.
16 Answers
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