/// <summary>
/// First element of enumeration
/// </summary>
public static T FirstOrDefault <T>(IEnumerable <T> e)
{
return(Numbered.NthOrDefault(e, 0));
}
/// <summary>
/// First element of enumeration
/// </summary>
public static T SecondOrDefault <T>(IEnumerable <T> e)
{
return(Numbered.NthOrDefault(e, 1));
}
/// <summary>
/// First element of enumeration
/// </summary>
public static T ThirdOrDefault <T>(IEnumerable <T> e)
{
return(Numbered.NthOrDefault(e, 2));
}
