JavaScript Program to perform arithmetic operations using switch case

In this program, You will learn how to perform arithmetic operations using a switch case in JavaScript.

---

switch(expression) {
  case 1:
    // statement
    break
  case 2:
    // statement
    break
  default:
    // statement
}

Example: How to perform arithmetic operations using a switch case in JavaScript

let x, y, res, ch

console.log("Enter 1 For Addition:")
console.log("Enter 2 For Subtraction:")
console.log("Enter 3 For Multiplication:")
console.log("Enter 4 For Division :")
console.log("Enter 5 For Modulus :")
ch = parseInt(prompt("Enter your choice:"))

if (ch > 0 && ch < 6) {
    x = parseInt(prompt("Enter first number"))
    y = parseInt(prompt("Enter second number"))
}

switch (ch) {
    case 1:
        res = x + y;
        console.log("\nResult is :" + res)
        break

    case 2:
        res = x - y
        console.log("\nResult is :" + res)
        break

    case 3:
        res = x * y
        console.log("\nResult is :" + res)
        break

    case 4:
        res = x / y
        console.log("\nResult is :" + res)
        break

    case 5:
        res = x % y;
        console.log("\nResult is :" + res)
        break

    default:
        console.log("Invalid Choice:" + ch)
}

Output:

Enter 1 For Addition:
Enter 2 For Subtraction:
Enter 3 For Multiplication:
Enter 4 For Division :
Enter 5 For Modulus :
Enter your choice:> 1
Enter first number> 40
Enter second number> 9

Result is :49