Dart implementation of Fowler's Money pattern.
// Create a money object that represents 1 USD
final money = Money(100, Currency('USD'));
// Access the Money object's monetary value
print(money.amount); // => 100
// -- OR --
print(money.amountAsString); // => 1.00final money = Money.fromString('12.50', Currency('USD'));
print(money.amount); // => 1250final money = Money.fromDouble(12.34, Currency('USD'));
print(money.amount); // => 1234final money = Money(150, Currency('USD'));
print(money.toString()); // => 1.50 USD// Create two Money objects that represent 1 USD and 2 USD, respectively
final a = Money(100, Currency('USD'));
final b = Money(200, Currency('USD'));
var c = null;
// Negate a Money object
c = -a;
print(c); // => -1.00 USD
// Calculate the sum of two Money objects
c = a + b;
print(c); // => 3.00 USD
// Calculate the difference of two Money objects
c = b - a;
print(c); // => 1.00 USD
// Multiply a Money object with a factor
c = a * 2;
print(c); // => 2.00 USDfinal a = Money(100, Currency('USD'));
final b = Money(200, Currency('USD'));
a < b; // => true
a > b; // => false
b <= a; // => false
b => a; // => true
a.compareTo(b); // => -1
a.compareTo(a); // => 0
b.compareTo(a); // => 1The compareTo() method returns an integer less than, equal to, or greater than zero if the value of one Money object is considered to be respectively less than, equal to, or greater than that of another Money object.
Money implements Comparable interface and you can sort a list of Money objects.
final a = Money(5, Currency('USD'));
for (var c in a.allocate(3, 7)) {
print(c);
}The code above produces the output shown below:
2
3