locutus/esm/php/bc/bcadd.js

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

import { _bc as bc } from "../_helpers/_bc.js";
export function bcadd(leftOperand, rightOperand, scale) {
    //  discuss at: https://locutus.io/php/bcadd/
    // original by: lmeyrick (https://sourceforge.net/projects/bcmath-js/)
    //   example 1: bcadd('1', '2')
    //   returns 1: '3'
    //   example 2: bcadd('-1', '5', 4)
    //   returns 2: '4.0000'
    //   example 3: bcadd('1928372132132819737213', '8728932001983192837219398127471', 2)
    //   returns 3: '8728932003911564969352217864684.00'
    const libbcmath = bc();
    let first;
    let second;
    let result;
    if (typeof scale === 'undefined') {
        scale = libbcmath.scale;
    }
    scale = scale < 0 ? 0 : scale;
    // create objects
    first = libbcmath.bc_init_num();
    second = libbcmath.bc_init_num();
    result = libbcmath.bc_init_num();
    first = libbcmath.php_str2num(leftOperand.toString());
    second = libbcmath.php_str2num(rightOperand.toString());
    result = libbcmath.bc_add(first, second, scale);
    if (result.n_scale > scale) {
        result.n_scale = scale;
    }
    return result.toString();
}