Math Operations JS Advanced

function mathOperations(num1, num2, sign) {
    const operations = {
        '+': (a, b) => a + b,
        '-': (a, b) => a - b,
        '*': (a, b) => a * b,
        '/': (a, b) => a / b,
        '%': (a, b) => a % b,
        '**': (a, b) => a ** b
    };

    const result = operations[sign](num1, num2);
    console.log(result);
}

OR

function mathOperations(num1, num2, sign) {
    let result = 0;
    if (sign === '+') {
        result = num1 + num2;
    } else if (sign === '-') {
        result = num1 - num2;
    } else if (sign === '*') {
        result = num1 * num2;
    } else if (sign === '/') {
        result = num1 / num2;
    } else if (sign === '%') {
        result = num1 % num2;
    } else if (sign === '**') {
        result = Math.pow(num1, num2);
    }
    console.log(result);
}