/// <summary>
/// 15.1.2.4
/// </summary>
public JsInstance IsNaN(JsInstance[] arguments)
{
if (arguments.Length < 1)
{
return(BooleanClass.New(false));
}
return(BooleanClass.New(double.NaN.Equals(arguments[0].ToNumber())));
}
/// <summary>
/// 15.1.2.5
/// </summary>
protected JsInstance isFinite(JsInstance[] arguments)
{
if (arguments.Length < 1 || arguments[0] == JsUndefined.Instance)
{
return(BooleanClass.False);
}
var value = arguments[0];
return(BooleanClass.New((value != NumberClass["NaN"] &&
value != NumberClass["POSITIVE_INFINITY"] &&
value != NumberClass["NEGATIVE_INFINITY"])
));
}
public JsObject Wrap(object value)
{
switch (Convert.GetTypeCode(value))
{
case TypeCode.Boolean:
return(BooleanClass.New((bool)value));
case TypeCode.Char:
case TypeCode.String:
return(StringClass.New(Convert.ToString(value)));
case TypeCode.DateTime:
return(DateClass.New((DateTime)value));
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.SByte:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
case TypeCode.Decimal:
case TypeCode.Double:
case TypeCode.Single:
return(NumberClass.New(Convert.ToDouble(value)));
case TypeCode.Object:
return(ObjectClass.New(value));
case TypeCode.DBNull:
case TypeCode.Empty:
default:
throw new ArgumentNullException("value");
}
}