https://github.com/bagilevi/bs-decimal

Decimal number utilities for ReasonML
https://github.com/bagilevi/bs-decimal

Last synced: 13 days ago
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Decimal number utilities for ReasonML

• Host: GitHub
• URL: https://github.com/bagilevi/bs-decimal
• Owner: bagilevi
• License: mit
• Created: 2018-10-13T13:58:44.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-11-10T11:23:37.000Z (over 6 years ago)
• Last Synced: 2025-04-21T17:57:52.094Z (27 days ago)
• Language: JavaScript
• Size: 16.6 KB
• Stars: 6
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# 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.