public void Ay()
{
Assert.AreEqual("ay", StringEx.Ay("left", "y"));
Assert.AreEqual("", StringEx.Ay("", "y"));
}
public static string Join <T>([NotNull, InstantHandle] this IEnumerable <T> values) =>
// ReSharper disable once BuiltInTypeReferenceStyle
StringClass.Join("", values);
// ReSharper disable once BuiltInTypeReferenceStyle public static bool NotNullNorWhiteSpace([CanBeNull] this string str) => !StringClass.IsNullOrWhiteSpace(str);
public static string Join <T>([NotNull, InstantHandle] this IEnumerable <T> values, [CanBeNull] string separator) => // ReSharper disable once BuiltInTypeReferenceStyle StringClass.Join(separator, values);