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When to use “new” and when not to, in C++? [duplicate]

...Some examples of this are: void foo() { Point p = Point(0,0); } // p is now destroyed. for (...) { Point p = Point(0,0); } // p is destroyed after each loop Some people will say that the use of new decides whether your object is on the heap or the stack, but that is only true of variables de...
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MVC3 DropDownListFor - a simple example?

...use StackOverflow to figure out how to get them to appear on the View, but now I don't know how to capture the values in its corresponding properties on the View Model when it's submitted. In order to get this to work I had to create an inner class that had an ID and a value property, then I had to...
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In JavaScript, does it make a difference if I call a function with parentheses?

...they can be passed around exactly as if we were passing around values. So now to the difference of assignment: var operator = 3; var operand = 4; var ret = Multiply(operator, operand); At the point of defining the ret variable, Multiply is executed and the return value is assigned - ret becomes ...
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What does FETCH_HEAD in Git mean?

...is a tag for a version of the software. To my surprise, release_1 was then nowhere to be found on my local machine. I had to type git tag release_1 FETCH_HEAD to complete the copy of the tagged chain of commits (release_1) from the remote repository to the local one. Fetch had found the remote ...
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How to avoid null checking in Java?

... to intermediate developers tend to face at some point: they either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they tend to rely on returning nulls to indicate something thus requiring the caller ...
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Entity Framework DateTime and UTC

...ue(entity, DateTime.SpecifyKind(dt.Value, attr.Kind)); } } } Now hook that attribute up to your EF context: public class MyContext : DbContext { public DbSet<Foo> Foos { get; set; } public MyContext() { ((IObjectContextAdapter)this).ObjectContext.ObjectMater...
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What is the difference between JavaScript and ECMAScript?

... momentum and is scheduled to release its 6th Edition in a few months from now with the biggest changes its had thus far. You can use a list of features for ECMAScript 6 here http://kangax.github.io/es5-compat-table/es6/ and also the browser support. You can even start writing Ecmascript 6 like yo...
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Why is f(i = -1, i = -1) undefined behavior?

...Then this: f(i=-1, i=-1) might become: clear i clear i decr i decr i Now i is -2. It is probably a bogus example, but it is possible. share | improve this answer | fol...
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KnockOutJS - Multiple ViewModels in a single View

I'm thinking that my application is getting quite large now, too large to handle each View with a single ViewModel. 5 Answe...
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No internet on Android emulator - why and how to fix? [closed]

...ator command line solved the issue for me. Android had no internet before, now it has. Running on Win10. I'm puzzled why that command line argument was necessary though? – mipnw Apr 1 '18 at 3:18 ...