mdmoney

march.dev money library. Provides a new way to work with a money. From highly flexible creation to rich data manipulation and stringification options.

Getting Started

To begin your work with a money object you need to create it, there are several ways to do it:

• Money.fromCents with following args:
  • cents
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.fromBigInt with following args:
  • BigInt amount
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.fromInt with following args:
  • int amount
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.fromDecimal with following args:
  • Decimal amount (from decimal package)
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.fromDouble with following args:
  • double amount
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.fromString with following args:
  • String
  • currency, if not specified in a String
  • custom precision, if not provided - currency.precision will be used instead
• Money.fromAmount with following args:
  • Amount amount
  • currency
  • custom precision, if not provided - amount.precision will be used instead
  • preferCurrencyPrecision, if set to true field precision is omitted, otherwise either precision or amount.precision will be used.

Also there are some convenient ways to create an object:

• Money.zeroOf to create the amount with 0 as numerator with following args:
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.oneOf to create the amount with 1 as numerator with following args:
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.oneIntOf to create the amount with 1 as integer with following args:
  • currency
  • custom precision, if not provided - currency.precision will be used instead
• Money.zero to create the amount with 0 as numerator in default currency (FiatCurrency.$default)
• Money.one to create the amount with 1 as numerator in default currency (FiatCurrency.$default)
• Money.oneInt to create the amount with 1 as integer in default currency (FiatCurrency.$default)

First of all, Money object is comparable and has all required operators:

• unary operator -
• binary operator -
• operator +
• operator *
• operator /
• operator <
• operator <=
• operator >
• operator >=
• operator ==

Regarding what you can do with this object, let's break down following methods/getters/fields:

• cents - returns the BigInt cents representation of the amount
• currency - returns the currency of the amount
• precision - returns the precision of the amount (quantity of digits in fractional part)
• sign - returns the sign of the amount
• isEven - whether the amount is even or not
• isOdd - whether the amount is odd or not
• isNegative - whether the amount is negative or not
• isPositive - whether the amount is positive or not
• isZero - whether the amount is equals to zero or not
• isGreaterThanZero - whether the amount is greater than zero or not
• isGreaterThanOrEqualZero - whether the amount is greater than or equals to zero or not
• isLessThanZero - whether the amount is less than zero or not
• isLessThanOrEqualZero - whether the amount is less than or equals to zero or not
• integer - returns the integer part of the amount
• fractional - returns the fractional part of the amount in BigInt cents
• fractionalDecimal - returns the fractional part of the amount in Decimal
• fractionalDouble - returns the fractional part of the amount in double
• abs - returns the absolute (always positive) amount
• round - returns the rounded amount
• ceil - returns the ceiled amount (rounded to the next integer)
• floor - returns the floored amount (truncating fractional part of the amount)
• toDecimal - returns the amount in Decimal
• toDouble - returns the amount in double
• toAmount - returns the amount in Amount
• toString - return the String representation of the amount with lots of customisation options, they are:
  • DecimalSeparatorFormat - specifies which decimal separator to use:
    • point
    • comma
  • RankFormat - specifies rank formatting:
    • none (XXXX)
    • space (X XXX)
  • AmountFormat - specifies amount display formatting:
    • integer - only integer part (XXXX)
    • flexibleDouble - fractional parts will not display trailing zeros (XXXX/XXXX.X/XXXX.XX)
    • fixedDouble - fractional parts will display full precision, even zeros (XXXX.XX)
  • FiatCurrencyFormat - specifies how currency should be displayed:
    • none
    • code (USD/EUR/UAH/etc.)
    • icon ($/€/₴/etc.)
  • CurrencyPosition - specifies where currency should be:
    • start
    • startSpaced
    • end
    • endSpaced
    • decimalSeparator
  • precision - if set, this method will behave differently based on AmountFormat:
    • integer - precision is omitted
    • fixedDouble - precision will be used as an override to Amount.precision
    • flexibleDouble - precision will be used only if length of fractionals will be less than precision

Known limitations

• Max precision is 15, everything that is beyond this precision will be trimmed due to Decimal's internal inability to work with such precisions.

Examples

To see usage example navigate to the Example section.

Feature requests and Bug reports

Feel free to post a feature requests or report a bug here.