> 2.1 + 2.2 4.300000000000001 > calc(' 2.1 + 2.2 ') 4.3Using NPM:
npm install --save calculatorjsIn 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>calc(' 1 + (2 * 3 - 1) / 4 * -1 ')Support + - * / ( ) minus
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) // 0.56Distributed under MIT License.