/// <summary>
/// Removes all items matched by predicate
/// Returns number of items removed
/// </summary>
/// <param name="dic"></param>
/// <param name="predicate"></param>
/// <typeparam name="K"></typeparam>
/// <typeparam name="V"></typeparam>
/// <returns></returns>
public static int RemoveAll <K, V>(this IDictionary <K, V> dic, Func <KeyValuePair <K, V>, bool> predicate)
{
predicate.MustNotBeNull();
dic.MustNotBeNull();
var keys = dic.TakeWhile(predicate).ToArray();
foreach (var kv in keys)
{
dic.Remove(kv);
}
return(keys.Length);
}
