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How can I convert immutable.Map to mutable.Map in Scala?
...p varargs factory. Unlike the ++ approach, this uses the CanBuildFrom mechanism, and so has the potential to be more efficient if library code was written to take advantage of this:
val m = collection.immutable.Map(1->"one",2->"Two")
val n = collection.mutable.Map(m.toSeq: _*)
This works ...
Wait for a void async method
...m to block, and would always run asynchronously after they are started.
meaning without the returning Task, there would be no way to check if it is complete.
as expected, it only starts the Task running async, and then it continues in the code.
and the async Task, first it starts the Task, and th...
Convert list of dictionaries to a pandas DataFrame
I have a list of dictionaries like this:
7 Answers
7
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Static linking vs dynamic linking
...ally, if your software is for internal use (i.e. to be used within your organisation only, and not distributed), then you can statically link. This would apply to e.g. server software, where the server is not distributed.
– JBentley
Jan 10 '14 at 1:26
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How to update a pull request from forked repo?
So I first forked a repo and then made a commit to that forked repo. I then opened a pull request. The pull request listed all the changes I wanted.
...
What are these attributes: `aria-labelledby` and `aria-hidden`
...ative items like glyphicon icons from screen readers, which doesn't have meaningful pronunciation so as not to cause confusions. It's a nice thing do as matter of good practice.
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Heroku Postgres - terminate hung query (idle in transaction)
...that the transaction was not terminated with a "commit" or a "rollback", meaning that the application is buggy or not properly designed to work with transactional databases. Long-lasting "idle in transaction" should be avoided, as it also can cause major performance problems.
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How to inherit from a class in javascript?
...on, No prototype)
function Lifeform () {
this.isLifeform = true;
}
// Animal "Class" (Constructor function + prototype for inheritance)
function Animal () {
this.isAnimal = true;
}
Animal.prototype = new Lifeform();
// Mammal "Class" (Constructor function + prototype for inheritance)
funct...
How do I record audio on iPhone with AVAudioRecorder?
Now that iPhone 3.0 SDK is public, I think I can ask this question for those of you that have already been playing with the 3.0 SDK. I want to record audio in my application, but I want to use AVAudioRecorder and not the older way of recording like the example SpeakHere shows. There are not any...
postgresql COUNT(DISTINCT …) very slow
I have a very simple SQL query:
4 Answers
4
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