c# snips

StripNonNumeric.cs

public static string StripNonNumeric(this string value)
{
    var newVal = string.Empty;

    foreach (var item in value)
    {
        var intVal = 0;
        var res = int.TryParse(item.ToString(), out intVal);
        if (res)
        {
            newVal += intVal.ToString();
        }
    }

    return newVal;
}