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Why doesn't 'ref' and 'out' support polymorphism?
...pose you have classes Animal, Mammal, Reptile, Giraffe, Turtle and Tiger, with the obvious subclassing relationships.
Now suppose you have a method void M(ref Mammal m). M can both read and write m.
Can you pass a variable of type Animal to M?
No. That variable could contain a Turtle, b...
WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express
I'm working with ASP.NET MVC 4 WebApi and am having a lot of fun with it running it on my local computer on IIS Express. I've configured IIS Express to serve remote machines too, and so other's in my company are using my computer as our webserver.
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How to get object length [duplicate]
...therwise (notably in IE < 9), you can loop through the object yourself with a for (x in y) loop:
var count = 0;
var i;
for (i in a) {
if (a.hasOwnProperty(i)) {
count++;
}
}
The hasOwnProperty is there to make sure that you're only counting properties from the object literal, ...
Change bundle identifier in Xcode when submitting my first app in IOS
I'm trying to submit my first app in iOS . I have entered iOS Provisioning Portal and I am about to create an app ID.
1...
How to recover a dropped stash in Git?
I frequently use git stash and git stash pop to save and restore changes in my working tree. Yesterday I had some changes in my working tree that I had stashed and popped, and then I made more changes to my working tree. I'd like to go back and review yesterday's stashed changes, but git stash ...
Is Java's assertEquals method reliable?
I know that == has some issues when comparing two Strings . It seems that String.equals() is a better approach. Well, I'm doing JUnit testing and my inclination is to use assertEquals(str1, str2) . Is this a reliable way to assert two Strings contain the same content? I would use assertTr...
Passing Objects By Reference or Value in C#
In C#, I have always thought that non-primitive variables were passed by reference and primitive values passed by value.
7 ...
How to exit in Node.js
What is the command that is used to exit? (i.e terminate the Node.js process)
19 Answers
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Difference between maven scope compile and provided for JAR packaging
...e maven scope compile and provided when artifact is built as a JAR? If it was WAR, I'd understand - the artifact would be included or not in WEB-INF/lib. But in case of a JAR it doesn't matter - dependencies aren't included. They have to be on classpath when their scope is compile or provided...
File tree view in Notepad++
I was wondering how to make a file tree view in Notepad++, like other editors have, where I could open a file by clicking on it?
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