Calculator App Calculator App 7 8 9 / 4 5 6 * 1 2 3 - 0 . C + = Football Logo Football Club Est. 2022 let num1 = ''; let num2 = ''; let operator = ''; let result = ''; function input(num) { if (operator === '') { num1 += num; document.getElementById('result').value = num1; } else { num2 += num; document.getElementById('result').value = num2; } } function operator(op) { operator = op; } function clearInput() { num1 = ''; num2 = ''; operator = ''; document.getElementById('result').value = ''; } function calculate() { switch (operato