Package Exports

@dijkstra-keystone/keystone-wasm
@dijkstra-keystone/keystone-wasm/keystone_wasm.js
@dijkstra-keystone/keystone-wasm/keystone_wasm_bg.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@dijkstra-keystone/keystone-wasm) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

keystone-wasm

WASM bindings for Keystone financial computation.

Installation

npm install @dijkstra-keystone/wasm

Usage

import init, * as keystone from '@dijkstra-keystone/wasm';

async function main() {
  await init();

  // Arithmetic
  keystone.add("100.50", "49.50");     // "150"
  keystone.multiply("99.99", "1.08");  // "107.9892"
  keystone.divide("100", "3");         // "33.333..."

  // Rounding
  keystone.round("123.456", 2, "half_up");  // "123.46"

  // Financial
  keystone.compound_interest("10000", "0.05", 12, 5);
  keystone.future_value("10000", "0.07", 10);

  // Risk
  keystone.health_factor("10000", "5000", "0.80");  // "1.6"
  keystone.liquidation_price("5", "10000", "0.80");
}

Features

Full precision-core arithmetic
All financial-calc functions
All risk-metrics functions
~97KB optimized bundle
Deterministic cross-platform results

API

Arithmetic

add(a, b), subtract(a, b), multiply(a, b), divide(a, b)
abs(value), compare(a, b), min(a, b), max(a, b)

Rounding

round(value, dp, mode) - Modes: "half_even", "half_up", "down", "up", etc.
floor(value), ceil(value), trunc(value)

Financial

simple_interest, compound_interest, effective_annual_rate
future_value, present_value, net_present_value
percentage_of, percentage_change

Risk

health_factor, is_healthy, collateral_ratio
liquidation_price, max_borrowable
loan_to_value, utilization_rate

License

Licensed under either of Apache License, Version 2.0 or MIT license at your option.