calculator-rrgn v1.0.1

Calculator

Usage

var calc = makeCalculator();

console.log(calc.getNumber(0)); // outputs 0
calc.add(4);
console.log(calc.getNumber()); // outputs 4
calc.subtract(2);
console.log(calc.getNumber()); // outputs 2
calc.times(3);
console.log(calc.getNumber()); // outputs 6