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Swift: Testing optionals for nil
...ing with possXYZ (the unwrapped value of xyz)
} else {
// do something now that we know xyz is .None
}
This way you can both test if xyz contains a value and if so, immediately work with that value.
With regards to your compiler error, the type UInt8 is not optional (note no '?') and therefor...
Limit a stream by a predicate
... gotten a much bigger performamce boost, without bothering the developers. Now that is automagical parallelism done right.
– Aleksandr Dubinsky
Dec 25 '13 at 20:24
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Difference between a Message Broker and an ESB
... is the CLEAR demarcating difference between an Message Broker and an ESB? Now here I am trying to compare products, Websphere Broker and Mule ESB!!
...
ReadOnlyCollection or IEnumerable for exposing member collections?
...s it just me or is this an answer to a different question? It's useful to know this "solution", but the op has asked for a comparison between returning a ReadOnlyCollection and IEnumerable. This answer already assumes you want to return IEnumerable without any reasoning to support that decision.
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What is std::promise?
...
I understand the situation a bit better now (in no small amount due to the answers here!), so I thought I add a little write-up of my own.
There are two distinct, though related, concepts in C++11: Asynchronous computation (a function that is called somewhere el...
Pointers in Python?
I know Python doesn't have pointers, but is there a way to have this yield 2 instead
9 Answers
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What are the primary differences between TDD and BDD? [closed]
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Above 'Tom Ten Thij' link is dead by now.. here's live @ - tomtenthij.nl/2008/1/25/…
– Kundan Pandit
Jan 19 '15 at 6:41
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How can I make Jenkins CI with Git trigger on pushes to master?
...hese steps:
Go to your project's settings → Web hooks
Enter the "Build Now" URL from your Jenkins project as a Push Event URL:
http://server.com/jenkins/job/project_name/build?delay=0sec for example
Click Add Web Hook and then test hook
Then any time you commit to the repository, the web hook...
In Python, how do you convert a `datetime` object to seconds?
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Python now warns me: "TypeError: can't subtract offset-naive and offset-aware datetimes" What's the best solution to fix that?
– Aaron Ash
Apr 13 '13 at 0:47
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(Deep) copying an array using jQuery [duplicate]
...s:
var a =[[1], [2], [3]];
var b = a.slice();
b.shift().shift();
// a is now [[], [2], [3]]
Note that although I've used shift().shift() above, the point is just that b[0][0] contains a pointer to a[0][0] rather than a value.
Likewise delete(b[0][0]) also causes a[0][0] to be deleted and b[0...