calculator-partexercise-bp5/calculator/pmdm.js

This is a exercise for learning npm init

const date = require('moment-jalaali');
date.loadPersian({usePersianDigits: true});

// dar inja function getMoment yek function private hast 
// chera? chon export nashode va ghabel estefade dar file haye digar nist.
// eno neveshtam ta bedonid sar kelas ba deghat gosh dadam. :)
function getMoment(){
    return date().format('jYYYY/jMM/jDD');
}

// function1: plus ---------------------
function plus(a,b){
    const c = a+ b;
    return `sum of ${a} + ${b} equal to ${c} | In ${getMoment()}`
}

// function2: minus ----------------
function minus(a,b){
    const c = a - b;
    return `difference between ${a} - ${b} equal to ${c} | In ${getMoment()}`
}

// function3: division -------------------
function divison(a,b){
    const c = a / b;
    return `division of ${a} / ${b} equal to ${c} | In ${getMoment()}`
}

// function4: multiply ------------------
function multiply(a,b){
    const c = a / b;
    return `multiply of ${a} * ${b} equal to ${c} | In ${getMoment()}`
}

// exports modules: --------------------------

module.exports ={
    plus: plus,
    minus: minus,
    divison: divison,
    multiply: multiply
}