public static List <TResult> Select <T, TResult>(this IEnumerable <T> collection, JudgeDelegate <T> judger, SelectorDelegate <T, TResult> selector)
{
List <TResult> ret = new List <TResult> ();
var iter = collection.GetEnumerator();
while (iter.MoveNext())
{
if (judger == null || judger(iter.Current))
{
ret.Add(selector(iter.Current));
}
}
return(ret);
}
public static List <T> Select <T>(this IEnumerable <T> collection, JudgeDelegate <T> judger)
{
return(collection.Select(judger, e => e));
}
