locutus/esm/php/bc/bcdiv.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

import { _bc } from "../_helpers/_bc.js";
export function bcdiv(leftOperand, rightOperand, scale) {
    //  discuss at: https://locutus.io/php/bcdiv/
    // original by: lmeyrick (https://sourceforge.net/projects/bcmath-js/)
    //   example 1: bcdiv('1', '2')
    //   returns 1: '0'
    //   example 2: bcdiv('1', '2', 2)
    //   returns 2: '0.50'
    //   example 3: bcdiv('-1', '5', 4)
    //   returns 3: '-0.2000'
    //   example 4: bcdiv('8728932001983192837219398127471', '1928372132132819737213', 2)
    //   returns 4: '4526580661.75'
    const libbcmath = _bc();
    if (typeof scale === 'undefined') {
        scale = libbcmath.scale;
    }
    scale = scale < 0 ? 0 : scale;
    const first = libbcmath.php_str2num(leftOperand.toString());
    const second = libbcmath.php_str2num(rightOperand.toString());
    const result = libbcmath.bc_divide(first, second, scale);
    if (result === -1) {
        throw new Error('(BC) Division by zero');
    }
    if (result.n_scale > scale) {
        result.n_scale = scale;
    }
    return result.toString();
}