@keqingrong/math (WIP)

Utilities for some frequently used calculation

Installation

npm install @keqingrong/math

Usage

import {
  toFixedAdvanced,
  yuan2cent,
  calculateDiscountedPrice,
  calculateDiscount,
} from '@keqingrong/math';

(0.015).toFixed(2); // '0.01'
toFixedAdvanced(0.015, 2); // '0.02'

33.8 * 100; // 3379.9999999999995
yuan2cent(33.8); // 3380;

calculateDiscountedPrice(1000, 8); // '800.00'
calculateDiscountedPrice(998, 8.8); // '888.22'

calculateDiscount(1000, 800); // '8'
calculateDiscount(1000, 888); // '8.9'

API

• mb2gb()
• cent2yuan()
• yuan2cent()
• addYuan()
• subYuan()
• calculateDiscountedPrice()
• calculateDiscount()
• toFixed()
• toFixedAdvanced()
• stripTrailingZeros()
• getDecimalDigits()
• subDecimal()

License

MIT © Qingrong Ke