Handy way to do minby / maxby extension methods in C# 7

minby.cs

 public static (T obj, float value) MinBy<T>(this T[] array,Func<T,float> lambda) 
{
    float minValue = float.MaxValue;
    T minT = default(T);
    //note if you implement this for List<T>, don't use foreach, it is slower. Use a for loop.
    foreach (var t in array)
    {
        var value = lambda.Invoke(t);
        if (value < minValue)
        {
            minValue = value;
            minT = t;
        }
    }
    return (minT, minValue);
}

//use example:
var (closestMine,mineDist) =
 world.ironMines.MinBy(mine => Vector2.DistanceSquared(mine.pos, player.pos));