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IListExtensions.cs
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IListExtensions.cs
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using System.Collections.Generic;
public delegate TResult Func<in T, out TResult>(T arg);
public static class IListExtensions
{
public static T Find<T>(this IList<T> source, Func<T, bool> condition)
{
foreach (T item in source)
if (condition(item))
return item;
return default(T);
}
public static IList<T> FindAll<T>(this IList<T> source, Func<T, bool> condition)
{
IList<T> all = new List<T>();
foreach (T item in source)
if (condition(item))
all.Add(item);
return all;
}
public static void RemoveAll<T>(this IList<T> source, Func<T, bool> condition)
{
foreach (var item in source.FindAll<T>(condition))
source.Remove(item);
}
public static IList<T> Convert<U, T>(this IList<U> source, Func<U, T> convertor)
{
IList<T> converted = new List<T>();
foreach (var item in source)
converted.Add(convertor(item));
return converted;
}
public static T[] ToArray<T>(this IList<T> source)
{
var array = new T[source.Count];
for (int i = 0; i < source.Count; i++)
array[i] = source[i];
return array;
}
}