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Simple explanation of clojure protocols
...ve it, but fail in one way or another: Interfaces and Extension Methods in C# and Java, Monkeypatching in Ruby, Python, ECMAScript.
Note that Clojure actually already has a mechanism for solving the Expression Problem: Multimethods. The problem that OO has with the EP is that they bundle operations...
How can you program if you're blind?
...ars on Windows, Mac, Linux and DOS, in languages from C/C++, Python, Java, C# and various smaller languages along the way. Though the original question was around configuring the environment, I think it's best answered by looking at how a blind person would use a computer.
Some people use a talking...
Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
...you don't get that piece of information you should remember that it is not C# source that executes but rather IL:
IL_0001: ldnull
IL_0002: stloc.0 // s
IL_0003: ldloc.0 // s
IL_0004: callvirt System.String.get_Length
IL_0009: call System.Console.WriteLine
It is the c...
Why does casting int to invalid enum value NOT throw exception?
....
The long answer: Section 6.2.2: Explicit enumeration conversions of the C# Language Specification says:
An explicit enumeration conversion between two types is processed by treating any participating enum-type as the underlying type of that enum-type, and then performing an implicit or explic...
Shortest distance between a point and a line segment
...shortest 2D distance between a point and a line segment in all cases in C, C# / .NET 2.0 or Java? I was asked to put a C# answer here when I find one: so here it is, modified from http://www.topcoder.com/tc?d1=tutorials&d2=geometry1&module=Static :
//Compute the dot product AB . BC
private ...
What is a Portable Class Library?
...ct template to Visual Studio that can be used to create class libraries in C# and VB that run on the various .NET platforms without recompiling.
It's used for creating a Class Library that targets multiple platforms (esp Silverlight variants such as WP7 and SL4, but including XNA on Xbox) at one t...
Arrays, heap and stack and value types
... int[100] generating the array on the heap? From what I've read on CLR via c#, the answer is yes. But what I can't understand, is what happens to the actual int's inside the array. As they are value types, I'd guess they'd have to be boxed, as I can, for example, pass myIntegers to other parts of th...
Javascript when to use prototypes
...otypes?
A useful comparison is with popular OO languages such as Java and C#. These support two kinds of inheritance:
interface inheritance, where you implement an interface such that the class provides its own unique implementation for every member of the interface.
implementation inheritance, w...
When should I use a struct rather than a class in C#?
When should you use struct and not class in C#? My conceptual model is that structs are used in times when the item is merely a collection of value types . A way to logically hold them all together into a cohesive whole.
...
Set Additional Data to highcharts series
...ass to assign the values prior to passing back in Json format. Here is the C# code in the controller action called by Ajax.
public JsonResult ChartData(string dataSource, string locationType, string[] locations, string[] methods, string fromDate, string toDate, string[] lstParams)
{
List<Dic...