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Hey hey hey! It's time for another Extension Methods Roundup! Here are some of the extension methods I've written since the last one: Dictionary's Missing Remove Methods public static void Remove<TKey, TValue>( this IDictionary <TKey, TValue>...
Post's Correspondence Problem (the other PCP) is a computer science problem, in which you have (and I simplify matters) a set of tiles, each having any number of letters on them from a preset group. For instance, you may have the tiles: The idea is to...
When using LINQ, queries may bloat up to dozens of lines. My personal style is to take these queries and break them apart to smaller units of logic. To each unit of logic, I append a call to ToArray . @yosit asked me why I did it and I answered I was...
As I do from time to time, here is a batch of three Extension Methods I've written recently: IndicesWhere /// <summary> /// Gets the indices where the predicate is true. /// </summary> public static IEnumerable < int > IndicesWhere<T>...
Tamir hates lambdas. He was having a problem with one of his lambda expressions and twittered about it. Around that time I opened my twitter account (yes, Yosi finally convinced me) and offered my help. He wanted to have a single extension method that...
Enumerating over a Dictionary<TKey, TValue> you will get structs of type KeyValuePair<TKey, TValue> . Whenever you use the ToDictionary extension method, you are forced to specify how to get the key and value for each item, even if it's an...
Here's another Linq method I wanted to share. This one takes two enumerations, enumeration and subset and checks to see whether subset exists in enumeration in its original order. I used the naming convention set by SequenceEqual . Examples: enumeration...
I've created a couple of useful extension methods that I like to use with Linq, so here they are: ContainsAtLeast I've noticed that there's no way to find out whether a collection has at least X items. The following takes the collection, tries to take...
The Basic Need Take the following code: public abstract class Base { protected Base( int something) { // ... } } public class Derived : Base { public Derived( int something) : base (something) { // ... } } public class Derived2 : Base { public Derived2...
Whenever I teach classes or do demos, I get asked about the C# code snippets I use in Visual Studio, so I decided to release them, if anyone would like to use them. I've created a project on CodePlex and I'll try to update it whenever I write a new one...
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