6
24%
MIT
bs-decimal
0.0.3
Decimal number utilities
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bs-decimal

Decimal number functions for ReasonML - experimental stage

Decimals are represented as a tuple of mantissa and exponent, both int. It supports basic mathematical operations and conversion to and from string.

Installation

yarn add bs-decimal

Add it to bs-dependencies in bsconfig.json, e.g:

{
  "name": "myapp",
  "sources": "src",
  "bs-dependencies": ["bs-decimal"]
}

Usage

open Decimal;

let a = dec("1.50");
let b = dec("2");

add(a, b)->to_s;                 # => 3.50
subtract(a, b)->to_s;            # => -0.50
multiply(a, b)->to_s;            # => 3.00
divide(a, b)->to_s;              # => 0.75

divide(a, b, ~precision=1)->to_s;   # => 0.7
divide(a, b, ~round=1)->to_s;       # => 0.8

Running tests

yarn test

During development:

# console 1 - watch & build .re -> .js
yarn start

# console 2 - watch & run tests
yart test:watch

Licence

MIT - See LICENCE file.

Project

Made with

Reason