function add(a, b) {
return a + b;
}
function multiply(a, b) {
return a * b;
}
class Calculator {
constructor() {
this.history = [];
}
compute(op, a, b) {
const result = op === "add" ? add(a, b) : multiply(a, b);
this.history.push(result);
return result;
}
}
module.exports = { add, multiply, Calculator };