Calculator - Fundamentals

function calculator(num1, operator, num2) {
    let result = 0;
    switch (operator) {
        case '+':
            result = num1 + num2; break;
        case '-':
            result = num1 - num2; break;
        case '/':
            result = num1 / num2; break;
        case '*':
            result = num1 * num2; break;
    }
    console.log(result.toFixed(2));
}