toExternal

public override external toExternal()

The IEEE-754 double-precision floating-point value held by the System.Double object.

Converts the IEEE-754 double-precision floating-point value to its equivalent external value.

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import System;   external mysql = { query: function(q, a) { Console.log(q, a); } };   // Constrain type arguments to only classes that can convert to 'external' interface ICommand<T: IExportable> {     void execute(...T args); }   class UpdateXYCoordinate : ICommand<Double> {     final void execute(...Double args) {         double x = args[0] ?? 0;         double y = args[1] ?? 0;         mysql.query(             "UPDATE `player` SET `x_coordinate` = ?, `y_coordinate` = ? WHERE `id` = 1;",             x.toExternal(),             y.toExternal()         );     } }   auto updateXYCoordinateCommand = new UpdateXYCoordinate(); updateXYCoordinateCommand.execute(1.1d, 1.0d);