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Providing a default value for an Optional in Swift?
...}
}
Then you can just do:
optionalValue.or(defaultValue)
However, I recommend sticking to the ternary operator as other developers will understand that much more quickly without having to investigate the or method
Note: I started a module to add common helpers like this or on Optional to swift...
Which iomanip manipulators are 'sticky'?
...
Important notes from the comments below:
By Martin:
@Chareles: Then by this requirement all manipulators are sticky. Except setw which seems to be reset after use.
By Charles:
Exactly! and the only reason that setw appears to behave di...
Attach IntelliJ IDEA debugger to a running Java process
... @user674669 I'm not sure. Maybe Remote is not available on the community edition? I'm using the paid version. Can anybody with the community edition confirm?
– Cory Klein
Mar 28 '16 at 20:03
...
Why can I not push_back a unique_ptr into a vector?
...t then one must take into account that the address of the local variable becomes invalid at the end of the scope.
– UncleBens
Jul 19 '10 at 18:39
...
How can I get a list of build targets in Ant?
...argets without having to search through the file manually. Does ant have a command for this - something like ant show-targets - that will make it list all the targets in the build file?
...
Contributing to project on github, how to “rebase my pull request on top of master”
...upstream , my forked repo on github is origin , and my local repo on my computer.
2 Answers
...
Does ARC support dispatch queues?
...cts are declared as
* Objective-C types when building with an Objective-C compiler. This allows
* them to participate in ARC, in RR management by the Blocks runtime and in
* leaks checking by the static analyzer, and enables them to be added to Cocoa
* collections.
*
* NOTE: this requires expl...
Java equivalent of C#'s verbatim strings with @
...
Coming from C# to Java it is quite often a step down in a lot of ways
– MikeKulls
Jul 25 '19 at 0:00
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How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?
...oose which one fits best in your scenario.
UPDATE:
As requested in the comments section here's an example of an action filter which would choose a master page:
public class LayoutInjecterAttribute : ActionFilterAttribute
{
private readonly string _masterName;
public LayoutInjecterAttrib...
Reading GHC Core
...nown, you can write directly in Core to program GHC.
GHC Core fits in the compiler pipeline (as it was in 2002, sans-LLVM and CMM):
The primary documents to learn about GHC Core are:
An External Representation for the GHC Core Language, Tolmach, 2001
ghc/compiler/CoreSyn, the GHC definition it...