arithmetic.js

A small library for mathematical operation in Javascript. only support:

• add (+)
• sub (-)
• mul (*)
• div (/)

Usage

arithmetic.js is easiest to use when installed with npm:

npm install arithmetic.js --save

Then you can load the module into your code with a import or require call:

import arithmetic from "arithmetic.js";
// or
var arithmetic = require("arithmetic.js");

Now, there're two methods for you to do the mathematics:

1. smpCal

   var smpCal = arithmetic.smpCal;
   
   smpCal.add(0.1,0.2) //0.3
   smpCal.sub(2,1) //3
   smpCal.mul(2,2) //4
   smpCal.div(6,3) //2

2. chainCal

   chainCal support method chaining, and you can get the result by using function named getValue;

   var chainCal = arithmetic.chainCal;
   // (3 + 0.2 - 1)/4*5
   chainCal(3).add(0.2).sub(1).div(4).mul(5).getValue(); // 2.75

Note

arithmetic.js do not support big number;

License

MIT