public static IEnumerable <TDestination> ToList <TSource, TDestination>(this IEnumerable <TSource> source)
where TDestination : new()
{
return(IEnumerableExtensions.ToList <TSource, TDestination>(
source: source,
selector: t => t.Clone <TDestination>(),
defaultValue: null));
}
/// <summary>
/// Select+ToList的组合版本(异步)
/// </summary>
/// <typeparam name="TSource"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="source"></param>
/// <param name="selector"></param>
/// <param name="defaultValue">当<paramref name="source"/>为<see cref="null"/>时，返回的值.默认值为:0长度的<see cref="List{T}"/></param>
/// <returns></returns>
public static Task <List <TResult> > ToListAsync <TSource, TResult>(
this IEnumerable <TSource> source,
Func <TSource, TResult> selector,
List <TResult>?defaultValue = null)
{
return(Task.Run(() =>
{
return IEnumerableExtensions.ToList <TSource, TResult>(
source: source,
selector: selector,
defaultValue: defaultValue);
}));
}
