write calculator operations in javascript in javascript

index.tsx
let num1 = parseFloat(prompt("Enter first number: "));
let num2 = parseFloat(prompt("Enter second number: "));
let operator = prompt("Enter operator (+, -, *, /): ");

let result;

if (operator === "+") {
  result = num1 + num2;
} else if (operator === "-") {
  result = num1 - num2;
} else if (operator === "*") {
  result = num1 * num2;
} else if (operator === "/") {
  result = num1 / num2;
} else {
  result = "Invalid operator";
}

console.log(result);
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