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How to define optional methods in Swift protocol?
...cause the type of the parameter cannot be represented in Objective-C"
In order to declare optional protocols that work well with swift, declare the functions as variables instead of func's.
protocol Health {
var isInfoHealthy: (Info) -> (Bool)? { get set }
}
And then implement the proto...
nosetests is capturing the output of my print statements. How to circumvent this?
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In order to integrate with http://travis-ci.org I have put this into .travis.yml:
script: "python setup.py nosetests -s"
where setup.py contains:
setup(
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tests_require=['nose>=1.0'],
test_suite='nose.col...
How to define “type disjunction” (union types)?
...pproach, further generalization would require defining analogous Or3, Or4, etc. traits. Of course, defining such traits would be much simpler than defining the corresponding Either classes.
Update:
Mitch Blevins demonstrates a very similar approach and shows how to generalize it to more than two ...
Show a Form without stealing focus?
...hWnd, // Window handle
int hWndInsertAfter, // Placement-order handle
int X, // Horizontal position
int Y, // Vertical position
int cx, // Width
int cy, // Height
uint uFlags); // Window posi...
How to unsubscribe to a broadcast event in angularJS. How to remove function registered via $on
...e inline anonymous functions are used as arguments to the $on function. In order to call $scope.$off(type, function) we'd need to keep a reference to the anonymous function. It is just thinking in a different way to how one would normally do add/remove event listeners in a language like ActionScript...
Default parameter for CancellationToken
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Here are several solutions, in descending order of general goodness:
1. Using default(CancellationToken) as default value:
Task DoAsync(CancellationToken ct = default(CancellationToken)) { … }
Semantically, CancellationToken.None would be the ideal candidate fo...
Remove all but numbers from NSString
...t decimal numbers including, for instance, Arabic-Indic digits (١٢٣٤٥ etc). Depending on your application, that could occasionally be a problem, but generally its either good or neutral, and a little shorter to type.
– Rob Napier
Jul 15 '09 at 14:03
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The 'json' native gem requires installed build tools
...file to point it to the correct one, then continue with ruby dk.rb review, etc.
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Big-O summary for Java Collections Framework implementations? [closed]
...O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is.
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What do the following phrases mean in C++: zero-, default- and value-initialization?
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