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Difference between Repository and Service Layer?
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Repository Layer gives you additional level of abstraction over data access. Instead of writing
var context = new DatabaseContext();
return CreateObjectQuery<Type>().Where(t => t.ID == param).First();
to get a single item from database, you use ...
Node.js / Express.js - How does app.router work?
... I think happens when working with middleware. To use middleware, the function to use is app.use() . When the middleware is being executed, it will either call the next middleware by using next() or make it so no more middleware get called. That means that the order in which I place my middleware...
Generating an Excel file in ASP.NET [closed]
I am about to add a section to an ASP.NET app (VB.NET codebehind) that will allow a user to get data returned to them as an Excel file, which I will generate based on database data. While there are several ways of doing this, each has its own drawbacks. How would you return the data? I'm lookin...
Why do we need fibers
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Fibers are something you will probably never use directly in application-level code. They are a flow-control primitive which you can use to build other abstractions, which you then use in higher-level code.
Probably the #1 use of fibers in Ruby is to implement Enumerators, which are a core Ru...
What is the correct way to make a custom .NET Exception serializable?
More specifically, when the exception contains custom objects which may or may not themselves be serializable.
7 Answers
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How to overload functions in javascript?
... pass different sets of arguments (in both type and quantity) and the function will behave in a way that matches the arguments passed to it.
Default arguments - You can define a default value for an argument if it is not passed.
Named arguments - Argument order becomes irrelevant and you just name w...
Use of Finalize/Dispose method in C#
... you simply implement a Dispose method as with normal interface implementations:
public sealed class A : IDisposable
{
public void Dispose()
{
// get rid of managed resources, call Dispose on member variables...
}
}
When implementing an unsealed class, do it like this:
public...
overlay two images in android to set an imageview
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You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerDrawable. You have one of two choices: You can either define it in XML then simply set the image, or you can configure a LayerDrawable dynamically in code.
Solution #1 (vi...
Calling clojure from java
...e.lang.RT to compile the source code. Could you help with a clear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the classpath?
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Replacing .NET WebBrowser control with a better browser, like Chrome?
...ere any relatively easy way to insert a modern browser into a .NET application?
22 Answers
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