5 ms·
Adding to all the other answers, here is what Haxe can do: class Metric { static function main() { var coinRadius:Millimeters = 12;
by joneil 12y ago
Adding to all the other answers, here is what Haxe can do:
class Metric {
static function main() {
var coinRadius:Millimeters = 12;
var myHeight:Centimeters = 180;
var raceLength:Meters = 200;
var commuteDistance:Kilometers = 23;
diff( coinRadius, myHeight ); // 1.788 meters
diff( raceLength, commuteDistance ); // 22800 meters
sum( commuteDistance, coinRadius ); // 23000.012 meters
}
static function diff( a:Meters, b:Meters ) {
var d = Math.abs( a-b );
trace( '$d meters' );
}
static function sum( a:Meters, b:Meters ) {
var s = Math.abs( a+b );
trace( '$s meters' );
}
}
And the best part is, at runtime those are all floats. Take a look at the compiled JS code:
(function () { "use strict";
var Metric = function() { };
Metric.main = function() {
var coinRadius = 12;
var myHeight = 180;
var raceLength = 200;
var commuteDistance = 23;
Metric.diff(coinRadius / 1000,myHeight / 100);
Metric.diff(raceLength,commuteDistance * 1000);
Metric.sum(commuteDistance * 1000,coinRadius / 1000);
};
Metric.diff = function(a,b) {
var d = Math.abs(a - b);
console.log("" + d + " meters");
};
Metric.sum = function(a,b) {
var s = Math.abs(a + b);
console.log("" + s + " meters");
};
Metric.main();
})();
The compiler takes care of all the conversions for you. To see the complete compileable example, including my type definitions for each unit, take a look at this gist: https://gist.github.com/jasononeil/b6b1845824f45f5d19df https://gist.github.com/jasononeil/b6b1845824f45f5d19df
And the manual on abstract types: http://haxe.org/manual/abstracts http://haxe.org/manual/abstracts