Calculatorjs

中文文档

> 2.1 + 2.2
4.300000000000001
> calc(' 2.1 + 2.2 ')
4.3

Usage

Using NPM:

npm install --save calculatorjs

In Node.js or Browser:

const calc = require('calculatorjs')
 
console.log(calc(' 0.1*(0.1+0.1) '))

Direct <script> Include

<script src="calc.js"></script>
<script>
    console.log(calc(' 0.1 * (0.1 + 0.1) '))
</script> 

DOC

Arithmetic expression

calc(' 1 + (2 * 3 - 1) / 4 * -1 ')

Support + - * / ( ) minus

API

calc.add(0.1, 0.2) // 0.3
calc.sub(0.1, 0.2) // -0.1
calc.mul(0.1, 0.2) // 0.02
calc.div(0.1, 0.2) // 0.5
calc.round(0.555, 2) // 0.56

License

Distributed under MIT License.